Physics - Questions and Answers, General Study (GK)

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71.

The ratio of the inertial mass to gravitational mass is equal to

(a)1/2

(b)2

(d)None of these

Comment

Answer is: DNA

72.

The intensity of earth's gravitational field is maximum at

(a)the equator

(b)the pole

(c)the center of the earth

(d)None of the above

Comment

Answer is: BNA

73.

If the distance between two masses is doubled, the gravitational attraction between them

(a)is doubled

(b)is reduced to half

(c)becomes four times

(d)is reduced to quarter

Comment

Answer is: BNA

74.

If the earth was stop rotating, the value of g is?

(a)increases

(b)decreases

(c)remain unchanged

(d)becomes zero

Comment

Answer is: ANA

75.

Which of the following statement is true

(a)g is the same at all places on the surface of the earth

(b)g is less at the earth’s surface than at a height above or at a depth below it

(c)g has its maximum value at the equator

(d)g is greater at the poles than at the equator

Comment

Answer is: CNA

76.

If the diameter and mass of the earth becomes two times their present values then the weight of an object on the surface the earth will

(a)become one fourth

(b)become half

(c)remain unchanged

(d)be doubled

Comment

Answer is: BNA

77.

The escape velocity from the surface of the earth does not depend on

(a)mass of the earth

(b)G

(c)radius of the earth

(d)mass of the body

Comment

Answer is: DNA

78.

If the earth was to rotate faster, acceleration due to gravity at the poles

(a)increases

(b)decreases

(c)remains the same

(d)none of these

Comment

Answer is: CNA

79.

The value of g is maximum at poles and minimum at equator because

(a)Latitude at the poles is 0° and the latitude at equator is 90°

(b)Latitude at the poles is 90° and the latitude at equator is 0°

(c)of acceleration

(d)None of these

Comment

Answer is: BNA

80.

The two bodies of different masses (if air resistance us to be negligible) fall freely and they have the same value of g near the earth's surface

(a)because the value of g does not depend on acceleration

(b)because the value of g does not depend on velocity

(c)because the value of g does not depend on mass

(d)None of the above

Comment

Answer is: CNA

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Physics - Questions and AnswersPage 8

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