Question # 1

If the roads are not banked

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A vehicle will turn over

A vehicle will not travel along with curve

Tyres and bearing are damaged

Roads will be spoiled

A bus and a car moving with the same K.E. are acted upon by the same retarding force then the

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car will stop first

Bus will stop first

Both will stop simultaneously

Both will never stop

An object at the end of a spring oscillates with SHM of angular frequency 2 rad s-1 What is the period of oscillation.

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0.32 s

0.50 s

0.80 s

3.1 s

The are between the velocity time graph and the time axis is numerically equal to.

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Distance moved by the object

Speed of the object

Velocity of the object

Acceleration of the object

The SI unit of torque.

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kg m2

kg ms-2

kg m2 s-2

kg ms -1

A body of mass 8 kg moves along a circle of radius 4 m with constant speed of 88 m s-1 The centripetal force on the body is.

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10 N

128 N

48 N

148 N

Which of the following is an example of negative work.

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a thrown up cricket ball

Grass mower

A car on road

Bucket in the well

One light year is equal to.

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9.46 x 10¹⁵ cm

9.46 x 10¹⁵ m

9.46 x 10¹⁵ km

7.88 x 10¹⁴ m

Solar cells are thin wafers made from

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Uranium

Nickel

Silicon

Cadmium

A force of 50 N acts on a body for 10 s the change in momentum will be.

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5 N s

200 Ns

500 Ns

800 N s

If a body of mass 'm' was released in a vacuum just above the surface of a planet of mass M and radius R what will be the gravitational acceleration.

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GmM/R

GM/R²

GM/R

GM/2R

For the angular momentum of a system to remains constant, the external torque should be

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small

Large

Neither small nor large

zero

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

A force of 10 N is acting along z-axis, its component along x -axis and y-axis is

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2 N , 8 N

3 N, 7 N

5 N each

Zero

Which quantity has dimensions different from the others.

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Energy per unit volume

Force per unit area

Angular momentum per unit mass

Pressure

The maximum height reached by a projectile with a velocity of 14 m s-1 at an angle of 30 ^owith the horizontal is.

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1.5 m

2.5 m

1 m

2 m

Oscillatory motion is always under

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An applied force

Restoring force and inertia

A periodic force

A gravitational force

Acceleration due to gravity is not affected by which one of the following

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Latitude

Attitude

Longitude

Depth

The centre of mass of a system is a point where an applied force causes the system to move.

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With rotation

Without rotation

Fastly

Slowly

Two forces act together on an object the magnitude of their resultant force is minimum when they act at

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0 ^o

45^oC

90^o

180 ^o

Conventionally antilock wise torque is taken as.

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Zero

Positive

Infinity

Negative

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