Properties of Solids & Liquids (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 35 - 40 of 190
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Question number: 35
» Properties of Solids & Liquids » Thermal Expansion
Question
The coefficient of volumetric expansion of mercury is 18 × 10 -5 / o C. A thermometer bulb has a volume 10 -6 m 3 and cross section of stem is 0.006 cm 2. Assuming that bulb is filled with mercury at 0°C then the length of the mercury column at 100°C is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 9.2 mm |
|
| b. | 0.03 m |
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| c. | 4.5 cm |
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| d. | 7.4 m |
|
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Question number: 36
» Properties of Solids & Liquids » Stress-Strain Relationship
Question
A wire of length lm is stretched by a force of 10 N. The area of cross-section of the wire is 2 × 10 6 m 2 and Y is 2 × lO -6 N/m 2. Increase in length of the wire will be -
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 2.5 × 10 -5 mm |
|
| b. | 2.5 × 10 -5 cm |
|
| c. | 2.5 × 10 -5 m |
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| d. | Question does not provide sufficient data or is vague |
|
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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 number: 37 (1 of 3 Based on Passage) Show Passage
» Properties of Solids & Liquids » Heat Transfer » Conduction
Question
Heat gained by turpentine and calorimeter is approximately
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 511 cal |
|
| b. | 815 cal |
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| c. | 704 cal |
|
| d. | 620 cal |
|
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Question number: 38 (2 of 3 Based on Passage) Show Passage
» Properties of Solids & Liquids » Heat Transfer » Conduction
Question
The specific heat of turpentine is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 0.72 cal/gm°c |
|
| b. | 0.12 cal/gm°c |
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| c. | 0.42 cal/gm°c |
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| d. | 0.96 cal/gm°c |
|
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Question number: 39 (3 of 3 Based on Passage) Show Passage
» Properties of Solids & Liquids » Heat Transfer » Conduction
Question
Heat lost by the ball is approximately
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 710 cal |
|
| b. | 810 cal |
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| c. | 610 cal |
|
| d. | 510 cal |
|
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Question number: 40
» Properties of Solids & Liquids » Thermal Expansion
Question
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. | 0.000573 per °C |
|
| b. | 0.000237 per °C |
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| c. | 0.000666 per °C |
|
| d. | 0.000956 per °C |
|
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