Maharashtra Board Class 12th Physics Important Objective Question for 2024 – Mock Test 07

महाराष्ट्र बोर्ड इंटरमिजिएट परीक्षा 2024 मध्ये विचारले जाणारे महत्त्वाचे भौतिकशास्त्राचे प्रश्न येथे आहेत, इयत्ता 12वीच्या भौतिकशास्त्राच्या परीक्षेसाठी 39 महत्त्वाचे प्रश्न. जर तुम्ही इंटरमिजिएट परीक्षेला बसत असाल आणि तुमचा विषय भौतिकशास्त्र असेल तर दिलेले सर्व प्रश्न काळजीपूर्वक वाचा.

Elasticity of Demand & Supply  Class 12th Physics Important Objective Question 2024

Results

#1. Steel is ----- elastic as compared to rubber

a) less

a) less

b) more

b) more

c) equal

c) equal

d) as good

d) as good

#2. The perfectly plastic body amongst the following is ----

a) iron

a) iron

b) quartz

b) quartz

c) putty

c) putty

d) rubber

d) rubber

#3. The ratio of change in volume to original volume is called -

a) Longitudinal strain

a) Longitudinal strain

b) volume strain

b) volume strain

c) shearing strain

c) shearing strain

d) volume stress

d) volume stress

#4. In the equilibrium condition, the deflecting and restoring couples are ----

a) not balanced with each other

a) not balanced with each other

b) exactly balanced with each other

b) exactly balanced with each other

c) equal in magnitude but same in direction

c) equal in magnitude but same in direction

d) same in direction but unequal in magnitude

d) same in direction but unequal in magnitude

#5. • 5. A beam supported at both ends and loaded at the center is equivalent to ---

• a) a cantilever

• a) a cantilever

b) two cantilevers

b) two cantilevers

c) bent beam

c) bent beam

d) three cantilevers

d) three cantilevers

#6. • 6. Bending moment of the beam is ---

• a) Y/R

• a) Y/R

b) R/(Y.Ig)

b) R/(Y.Ig)

c) Y.Ig/R

c) Y.Ig/R

d) Y.Ig.R

d) Y.Ig.R

#7. • 7. The external bending moment required to produce a unit radius of curvature is called as -----

• a) modulus of rigidity

• a) modulus of rigidity

b) Young’s modulus

b) Young’s modulus

c)flexural rigidity

c)flexural rigidity

d) modulus of elasticity

d) modulus of elasticity

#8. • 8. Flexural rigidity is equal to ---

• a) Y/R

• a) Y/R

b) Y.Ig

b) Y.Ig

R

R

d) Y.Ig/R

d) Y.Ig/R

#9. • 9. Searle’s method is convenient to determine the elastic constants of a material in the form of ---

• a) wire

• a) wire

b) rod

b) rod

c) cylinder

c) cylinder

d) plane sheet

d) plane sheet

#10. 10. In a bent beam, if the length of the beam is large in comparison with it’s thickness, the shearing stress is ----

• a) large

• a) large

b) negligible

b) negligible

c) positive infinity

c) positive infinity

d) negative infinitY

d) negative infinitY

#11. • 11. The S.I. unit of geometrical moment of inertia Ig is -----

• a) kgm2

• a) kgm2

b) 𝐦

b) 𝐦

c) m2

c) m2

d) kg/m

d) kg/m

#12. 12. The S.I. unit of flexural rigidity is ----

• a)N/m

• a)N/m

b)Nm

b)Nm

c) N/m2

c) N/m2

d)N𝐦�

d)N𝐦�

#13. • 13. Within elastic limit, stress is directly proportional to ----

a) shearing strain

a) shearing strain

volume strain

volume strain

strain

strain

longitudinal straiN

longitudinal straiN

#14. • 14. Bulk modulus for a solid is ----

a) very large

a) very large

b) very small

b) very small

c) negative

c) negative

d) zerO

d) zerO

#15. • 15. The couple per unit twist in wire is ----

• a) directly proportional to length of the wire

• a) directly proportional to length of the wire

• b) directly proportional to forth power of the radius of the wire

• b) directly proportional to forth power of the radius of the wire

• c) inversely proportional to the angle of twist

• c) inversely proportional to the angle of twist

• d) independent of it’s modulus of rigidity

• d) independent of it’s modulus of rigidity

#16. 16. Time period T of a torsional pendulum is 1 second. If the radius of the wire is doubled by keeping all other quantities same, the period will be ----

a) 16 second

a) 16 second

b) 1/16 second

b) 1/16 second

c) 8 second

c) 8 second

d) 1/2 secpnd

d) 1/2 secpnd

#17. 17. The effect of temperature on the value of modulus of elasticity in general is ------

• a) it increases with increase in temperature

• a) it increases with increase in temperature

• b) does not change with temperature

• b) does not change with temperature

• c) it decreases with increase in temperature

• c) it decreases with increase in temperature

• d) it changes only at negative temperatures but remains unchanged at positive temperatures

• d) it changes only at negative temperatures but remains unchanged at positive temperatures

#18. • 18. The ineria table is generally used to determine

a) shearing stress

a) shearing stress

b) M.I. of a body of irregular shape

b) M.I. of a body of irregular shape

• c) Young’s modulus

• c) Young’s modulus

d) bulk modulus

d) bulk modulus

#19. 19. Work done in twisting a certain wire through 10 degree is 2 J. If the same wire is twisted through 20 degree, the work done will be

a) 4 J

a) 4 J

b) 2 J

b) 2 J

c) 1 J

c) 1 J

d) 8 J

d) 8 J

#20. 20. For a beam of length 1m, the depression produced is 8 mm for a certain applied load. If the length is made 50 cm, by keeping all other factors constsnt, the depression will be --

a) 4 mm

a) 4 mm

b) 16 mm

b) 16 mm

c) 1 mm

c) 1 mm

d) 64 mm

d) 64 mm

#21. 1. In market economies, most production and consumption decisions are guided by

a. government decree

a. government decree

b. foreign countries (imports and exports)

b. foreign countries (imports and exports)

c. monopolists’ desires to maximize profits

c. monopolists’ desires to maximize profits

b. foreign countries (imports and exports)

b. foreign countries (imports and exports)

#22. 2. In general, “elasticity” can measure

a. whether a price increase causes quantity demanded to increase or decrease

a. whether a price increase causes quantity demanded to increase or decrease

b. the strength of an economy’s tendency to recover from recession

b. the strength of an economy’s tendency to recover from recession

c. the responsiveness of decision makers to economic changes in prices

c. the responsiveness of decision makers to economic changes in prices

#23. 3. More “elastic” means

a. less desirable

a. less desirable

b. less desirable

b. less desirable

b. less desirable

b. less desirable

d. more responsive

d. more responsive

#24. 4. Price elasticity of demand is calculated as

a. the percentage change in quantity demanded divided by the percentage change in price

a. the percentage change in quantity demanded divided by the percentage change in price

b. the percentage change in price divided by the percentage change in quantity demanded

b. the percentage change in price divided by the percentage change in quantity demanded

c. the absolute change in quantity demanded divided by the absolute change in price

c. the absolute change in quantity demanded divided by the absolute change in price

#25. 5. Without making an adjustment such as finding the absolute values of the percentage changes, the price elasticity of demand would be negative because

a. price and demand are directly related

a. price and demand are directly related

b. price and demand are inversely related

b. price and demand are inversely related

c. price and quantity demanded are inversely related

c. price and quantity demanded are inversely related

#26. 6. In calculating price elasticity of demand, we use average price and average quantity as our base value because

a. it reduces the complexity of the formula and makes the calculation easier

a. it reduces the complexity of the formula and makes the calculation easier

b. the resulting measure is then not influenced by whether price is rising or falling

b. the resulting measure is then not influenced by whether price is rising or falling

c. we would get the same answer if we use the initial price and quantity

c. we would get the same answer if we use the initial price and quantity

#27. 7. Price elasticity of demand is not influenced by

a. the number of substitutes available

a. the number of substitutes available

b. the proportion of the consumer’s budget spent on the good

b. the proportion of the consumer’s budget spent on the good

c. the length of the time period under consideration

c. the length of the time period under consideration

d. the units of measurement used for price or for quantity demanded

d. the units of measurement used for price or for quantity demanded

#28. 8. Edith buys 9 magazines per week when the price is $3. She buys 11 magazines per week when their price is $2. Edith’s price elasticity of demand is

a. -1/2 = -0.5

a. -1/2 = -0.5

b. -2/3 = -0.667

b. -2/3 = -0.667

c. -1.0

c. -1.0

#29. 9. Matt bought 6 CDs last month, when the price was $14. This month, when the price of CDs increased to $16, Matt bought only 4 CDs. Matt’s price elasticity of demand is

a. -1/3 = -0.333

a. -1/3 = -0.333

b. -3/7 = -0.429

b. -3/7 = -0.429

c. -7/3 = -2.333

c. -7/3 = -2.333

d. -3

d. -3

#30. 10. If a 5% increase in price leads to an 8% decrease in quantity demanded, demand is

a. perfectly elastic

a. perfectly elastic

b. elastic

b. elastic

c. unit elastic

c. unit elastic

d. inelastic

d. inelastic

#31. 11. If price elasticity of demand is -0.5,

a. a 1% decrease in quantity demanded leads to a 0.5% decrease in price

a. a 1% decrease in quantity demanded leads to a 0.5% decrease in price

b. a 1% decrease in price leads to a 0.5% increase in quantity demanded

b. a 1% decrease in price leads to a 0.5% increase in quantity demanded

c. a 50% decrease in price leads to a 1% increase in quantity demanded

c. a 50% decrease in price leads to a 1% increase in quantity demanded

d. demand is elastic

d. demand is elastic

#32. 12. Unit elastic demand occurs when

a. a one-unit increase in price leads to a one-unit decrease in quantity demanded

a. a one-unit increase in price leads to a one-unit decrease in quantity demanded

b. a 1% increase in price leads to a one-unit decrease in quantity demanded

b. a 1% increase in price leads to a one-unit decrease in quantity demanded

c. price elasticity of demand is positive

c. price elasticity of demand is positive

d. price elasticity of demand is exactly -1

d. price elasticity of demand is exactly -1

#33. 13. Knowledge of price elasticity of demand

a. is of no use to producers

a. is of no use to producers

b. tells producers what will happen to total profit if they change product price

b. tells producers what will happen to total profit if they change product price

c. tells producers what will happen to quantity supplied if they change product price

c. tells producers what will happen to quantity supplied if they change product price

d. tells producers what will happen to total revenue if they change product price

d. tells producers what will happen to total revenue if they change product price

#34. 14. In calculating price elasticity of demand, which of the following is assumed to be held constant?

a. the price of the product itself

a. the price of the product itself

b. the quantity demanded of the product

b. the quantity demanded of the product

c. total revenue received from the sale of the product

c. total revenue received from the sale of the product

d. the prices of all other products

d. the prices of all other products

#35. 15. Total revenue is defined asa. t

a. the net profit after the opportunity cost of all resources used has been deducted

a. the net profit after the opportunity cost of all resources used has been deducted

b. the change in quantity sold divided by the change in price

b. the change in quantity sold divided by the change in price

c. price elasticity of demand times quantity sold

c. price elasticity of demand times quantity sold

d. price times quantity sold

d. price times quantity sold

#36. 16. If a firm raises the price of its product, its total revenue will

a. always increase

a. always increase

b. increase only if demand is price inelastic

b. increase only if demand is price inelastic

c. increase only if demand is price elastic

c. increase only if demand is price elastic

d. remain constant, regardless of price elasticity of demand

d. remain constant, regardless of price elasticity of demand

#37. 17. If a price reduction leads to greater total revenue, demand is

a. perfectly inelastic

a. perfectly inelastic

b. inelastic

b. inelastic

c. unit elastic

c. unit elastic

d. elastic

d. elastic

#38. 18. John spends exactly the same dollar amount of candy bars each week, regardless of their price. John’s demand curve for candy bars is

upward-sloping

upward-sloping

b. backward-bending

b. backward-bending

c. perfectly inelastic

c. perfectly inelastic

d. unit elastic

d. unit elastic

#39. 19. When demand is price inelastic, total revenue is

a. directly related to quantity demanded

a. directly related to quantity demanded

b. inversely related to quantity demanded

b. inversely related to quantity demanded

c. directly related to price

c. directly related to price

d. not related to either price or quantity demanded

d. not related to either price or quantity demanded

Finish

वर दिलेल्या चाचणी मालिकेतील प्रश्न वेगवेगळ्या वेबसाईटवरून घेतले आहेत, याचे श्रेय त्यांनाच जाते, मी ते फक्त शैक्षणिक हेतूने शेअर करत आहे.

निष्कर्ष

या परीक्षांची पुरेशी तयारी करण्यासाठी विद्यार्थ्यांनी आवश्यक अभ्यासक्रम आणि मागील वर्षाच्या परीक्षेतील प्रश्नांचे पुनरावलोकन केले पाहिजे. कारण परीक्षेची वेळ मर्यादा अत्यंत कठोर असू शकते, वेळेचे व्यवस्थापन महत्त्वाचे आहे.

महाराष्ट्र बोर्डाच्या 12 व्या वर्गाच्या परीक्षांबद्दल अधिक माहिती मिळविण्यासाठी, तुम्हाला परीक्षेचे वेळापत्रक, अभ्यासक्रम आणि परीक्षेची माहिती मिळविण्यासाठी महाराष्ट्र शालेय परीक्षा मंडळाच्या अधिकृत वेबसाइटला भेट देणे आवश्यक आहे. तुम्ही तुमच्या शाळेशी किंवा आध्यात्मिक संस्थेशी संपर्क साधावा. ते तुम्हाला महाराष्ट्र बोर्ड 12वी इयत्तेबद्दल सर्वात विश्वासार्ह आणि अद्ययावत माहिती देऊ शकतात