Question # 1

The path of projectile is maximum at

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Point of lauch

Highest point

Point of landing

Both a and c

A particle executing simple harmonic oscillations of frequency 100 Hz has an amplitude of 0.1 cm The velocity amplitude of the particleis.

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20 micro cm s-1

10 micro cm s-1

20 cm s-1

19 cm s-1

The perpendicular distance between the line of action of forces and the axis of rotation

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Torque

Moment arm

Moment of force

Momentum

What are the dimensions of coefficient of velocity of

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[MLT-1]

[ML-1T-1]

[ML-2T-1]

[MLT-2]

Kinetic and potential energies are

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Not inter convertible

Inter convertible

Two forms of torque

Not related with each other

Rate of change of momentum is called.

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Torque

Force

Impulse

Inertia

92.65 is round off as

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92.6

93.00

92.7

None of these

A physical quantity not directly involved in rotating motion is.

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Moment of inertia

Mass

Angular velocity

Torque

Which of the following quantities has a unit that can be expressed in terms of just two different SI Units.

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Area

Charge

Force

Current

A body attached to a spring is pulled to a distance of 20 cm If the value of spring constant is 48 N m-1, the amount of force applied will be.

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4.8 N

9.6 N

96 N

192 N

The gravitational field strength at a point p on the earth's surfae is numerically equal to.

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The acceleration of free fail at p

The change in P.E. per unit distance at P

The work done in bringing unit mass from infinity to P

A stone is whirled in a vertical circle at the and of a string when the stone is at the highest position, tension in the string is

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Maximum

Zero

Equal to weight of the stone

Less than weight of the stone.

Which of the following SI units is not named after any physicist.

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Hertz

Joule

Volt

Candala

If a force of 10 N makes an angle of 30 ^o with x-axis its component is given by

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1.866 N

8.66 N

0.89 N

0.866 N

Which of the following is a non conservative force.

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Gravitational force

Air resistance

Elastic force

Tension in a string

In rotational motion, the analogue of force is.

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moment of inertia

Moment of force

Torque

Rotational inertia

It the slope of velocity time graph is increasing with time the body is said to have.

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Positive acceleration

Average acceleeration

Uniform acceleration

Retardation

Which of the following is not true.

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Velocity can be nagative

Velocity is a scalar

Speed is a vector

Speed can be negative

Absolute P.E. of a body can be calculated

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At centre of the earth

Below centre of the earth

From surface of the earth

Below surface of the earth

The value of 'g' is maximum

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Above the earth's surface

Below the earth's surface

At the earth's surface

At the centre of earth

The escape velocity from the earth's surface is

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1.2 km s-1

1.7 km s-1

10.2 km s-1

11.2 km s-1

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