NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1948 - 1951 of 2184

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Question number: 1948

» Gravitation » Universal Law of Gravitation

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MCQ▾

Question

A particle is suspended from a spring and it stretches the spring by 1 cm on the surface of earth. The same particle will stretches the same spring at a place 800 km above earth surface by -

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1949

» Rotational Motion » Moment of Inertia

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MCQ▾

Question

Two spheres each of mass M and radius are connected with a massless rod of length 2R as shown in the figure.

Two spheres connected with massless rod

Two Spheres Connected with Massless Rod

In figure two spheres each of mass M and radius R/2 connected with the massless rod of length 2R.

The moment of inertia of the system about an axis passing through the center of one of the spheres and perpendicular to the rod will be

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1950

» Gravitation » Gravitational Acceleration

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MCQ▾

Question

At what height above the earth’s surface the acceleration due to gravity will be of its value at the earth’s surface? Radius of earth is 6400 km

Choices

Choice (4) Response

a.

2228 km

b.

12800 km

c.

2560 km

d.

25600 km

Question number: 1951

» Rotational Motion » Radius of Gyration

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MCQ▾

Question

The moment of inertia of a sphere of mass M and radius R 2 about an axis passing through its center is -MR. The radius of gyration of the sphere about a parallel axis to the above and tangent to the sphere is,

Choices

Choice (4) Response

a.

b.

c.

d.