NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1944 - 1947 of 2144
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Question number: 1944
» Gravitation » Gravitational Acceleration
Question
On a planet (whose size is the same as that of earth and mass 4 times to the earth) the energy needed to lift a 2 kg mass vertically upwards through 2 m distance on the planet is (g = l0 m/sec 2 on the surface of earth) –
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 160 J |
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| b. | 320 J |
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| c. | 16 J |
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| d. | 32 J |
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Question number: 1945
» Gravitation » Gravitational Acceleration
Question
Assertion (Ꭺ)
The universal gravitational constant is same as acceleration due to gravity.
Reason (Ꭱ)
Gravitational constant and acceleration due to gravity have different dimensional formula.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ |
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| b. | Ꭺ is true but Ꭱ is false |
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| c. | Ꭺ is false but Ꭱ is true |
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| d. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ |
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Question number: 1946
» Gravitation » Universal Law of Gravitation
Question
Which of the following statements about the gravitational constant are false?
(1) It is a force
(2) It has no unit
(3) It has same value in all system of units
(4) It doesn’t depend on the value of the masses
Select the correct answers and mark it according to the following codes:
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 2 and 4 are correct |
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| b. | 1 and 2 are correct |
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| c. | 1,2 and 3 are correct |
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| d. | 1 and 3 are correct |
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Question number: 1947
» Gravitation » Universal Law of Gravitation
Question
A mass M splits into two parts m and (M - m), which are then separated by a certain distance. What ratio of maximizes the gravitational force between the parts?
Choices
| Choice (4) | Response | |
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