Question # 1

Acceleration produced in a body by the force varies

Choose an answer

inversely as the applied force

directly as the applied force

directly as the mass of the body

none of them

Work done is maximum when angle between force and displacement is

Choose an answer

0°

90°

180°

None of these

A metal road of length 1m is moving at a speed of 1 ms^-1In a direction making angle of 30º with 0.5 Y magnetic field. The emf produced in the rod is:

Choose an answer

0.25 N

0.25 V

2.5 V

2.5 N

25 V

The location and speed anywhere on earth can now be determined using relativistic effects by NAVISTAR to an accuracy of

Choose an answer

2 cm/s

20 cm/s

200 cm/s

2000 cm/s

At low speeds, the drag force is

Choose an answer

proportional to speed

inversely proportional to speed

not simply proportional to speed

none of them

The work done by a force, keeping an object in circular motion with constant speed is:

Choose an answer

Zero J

1 J

0.1 J

0.01 J

An intertial frame of reference is a frame of reference which is

Choose an answer

at rest

moving with uniform velocity

either at rest or moving with uniform velocity

none of these

According to the law of conservation of linear momentum, the total linear momentum of an isolated system

Choose an answer

increases

decreases with time

remains constant

none of them

The value of the plank's constant 'h' is given by

Choose an answer

1.6 x 10^-19J

1.67 x 10^-27Kg

6.63 x 10³⁴Js

6.63 x 10^-34Js

Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?

Choose an answer

Their range will be same

Their maximum height will be same

Their landing velocity will be same

Their time of flight will be same

If the object and its image are located at a distance of 5 cm from the focus of a convex lens, the focus length of the lens will be:

Choose an answer

5 cm

10 cm

20 cm

25 cm

A body will be in translation equilibrium only if the vector sum of all the external forces acting on a body is equal to

Choose an answer

Unity

Zero

Maximum

Double

Which one light source can travel faster through optical fibre is

Choose an answer

Infra red

Visible

Ultra violet

All of these

The cause of mirage observed in desert is

Choose an answer

Refraction

Reflection

Scattering

Total internal reflection

Which of the following is an example of Brittle substances?

Choose an answer

Copper and Brass

Brass and glass

Copper and glass

Only glass

Pressure exerted by a gas in merely momentum transferred to the walls due to the continuous collisions of molecules of the gas

Choose an answer

Per unit area

Per sec per unit area

Certain area

None of these

A gas exerts pressure on the walls of the container because molecules

Choose an answer

Have finite size

Obey Boyle's law

Have momentum

Collide with one another

To produce same acceleration in the bodies of masses 10 kg and 20 kg the force applied in the second body should be

Choose an answer

Halved

Equal for both bodies

Doubled

Three times

The Physical quantity which has the dimensional formula M¹T^-3 is

Choose an answer

Surface tension

Solar constant

Density

Compressibility

Maximum number of orders available with a grating is ______ grating element

Choose an answer

Independent of

Directly proportional to

Inversely proportional to

Equal to

At systolic pressure, at the point the first surges of blood flow through the narrow stricture produces

Choose an answer

High flow speed

Sound heard

Initially turbulent

All of these

If the temperature of the sink is decreased, the efficiency of a Carnot engine

Choose an answer

Decreases

Increases

Remains constant

First increases the decreases

More Classes

Other Links

Physics General Science Test Medium Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer