NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 1 of 2142

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MCQ▾

Question

A reference frame attached to the earth:

  1. Is an inertial frame by definition
  2. Cannot be an inertial frame because the earth is revolving round the sun
  3. Is an inertial frame because Newton’s laws are applicable in this frame
  4. Cannot be an inertial frame because the earth is rotating about its own axis

Choices

Choice (4) Response

a.

1 and 3

b.

1, 2 and 3

c.

2 and 4

d.

1 and 2

Topic iScore

Ques. Time

Answer

c.

Explanation

For an inertial frame of reference, its acceleration should be zero. As reference frame attached to the earth i. e. a rotating or revolving frame is accelerating, therefore, it will be non-inertial. Thus, due to both the rotation of the earth and its revolution around the Sun, earth is a non-inertial frame of reference.

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