Properties of Solids & Liquids [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 36 - 41 of 453
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Question 36
Question MCQ▾
A wire of length lm is stretched by a force of 10 N. The area of cross-section of the wire is 2 × 106 m2 and Y is 2 × lO-6 N/m2 . Increase in length of the wire will be -
Choices
Choice (4) | Response | |
---|---|---|
a. | 2.5 × 10-5 m | |
b. | 2.5 × 10-5 cm | |
c. | 2.5 × 10-5 mm | |
d. | All of the above |
Passage
Read the passage given below and answer the questions that follows:
A brass ball of mass 100 gm is heated to 100°C and then dropped into 200 gm of turpentine in a calorimeter at 15°C. The final temperature is found to be 23°C. Take specific heat of brass as 0.092 cal/gm°C and water equivalent of calorimeter as 4 gm.
Question 37 (1 of 3 Based on Passage)
Question MCQ▾
The specific heat of turpentine is
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.72 cal/gm°c | |
b. | 0.96 cal/gm°c | |
c. | 0.12 cal/gm°c | |
d. | 0.42 cal/gm°c |
Question 38 (2 of 3 Based on Passage)
Question MCQ▾
Heat lost by the ball is approximately
Choices
Choice (4) | Response | |
---|---|---|
a. | 610 cal | |
b. | 810 cal | |
c. | 710 cal | |
d. | 510 cal |
Question 39 (3 of 3 Based on Passage)
Question MCQ▾
Heat gained by turpentine and calorimeter is approximately
Choices
Choice (4) | Response | |
---|---|---|
a. | 511 cal | |
b. | 620 cal | |
c. | 704 cal | |
d. | 815 cal |
Question 40
Question MCQ▾
The real coefficient of volume expansion of glycerin is 0.000977 per °C and linear coefficient of expansion of glass is 0.000007 per °C. Then the apparent volume coefficient of expansion of glycerin is
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.000666 per °C | |
b. | 0.000956 per °C | |
c. | 0.000573 per °C | |
d. | 0.000237 per °C |
Question 41
Question MCQ▾
A wire of length lm is stretched by a force of 15 N. The area of cross-section of the wire is 2 × 106 m2 and Y is . Increase in length of the wire will be -
Choices
Choice (4) | Response | |
---|---|---|
a. | 4.45 × 10-5 m | |
b. | 3.75 × 10-5 m | |
c. | 2.25 × 10-5 m | |
d. | Question does not provide sufficient data or is vague |