Question # 1

Which of the modulus of elasticity is involved in compressing a rod to decrease its length?

Choose an answer

Young's modulus

Bulk modulus

Modulus of rigidity

None of the above

A cable breaks if stretched by more than 2 mm it is cut into two equal parts how much either part can be stretched without breaking?

Choose an answer

0.25 m

0.5 m

1 mm

2 mm

Two forces of 10N and 15N are acting simultaneously on an object in the same direction. Their resultant is

Choose an answer

Zero

5N

25N

150N

In a capacitive circuit

Choose an answer

Current leads voltage by phase of π/2

Voltage leads current by phase of π/2

Current and voltage are in same phase

Sometime current and sometime voltage leads

According to the Hooke's law the force required to change the length of a wire by '1' is proportional to

Choose an answer

1^-2

1^-1

1

1²

A man pushes a wall but fails to displace it. He does:

Choose an answer

Negative work

Maximum positive work

Positive work but not maximum

No work

The mass defect for the nucleus of helium is 0.0303 a.m.u What is the binding energy per nucleon for helium in MeV?

Choose an answer

28

7

4

1

Two masses of 1 g and 4 g are moving with equal kinetic energies The ratio of the magnitudes of their linear moments is:

Choose an answer

4 : 1

√2 : 1

1 : 2

1 : 16

The dot product of two vectors is negative when

Choose an answer

They are parallel vectors

They are anti-parallel vectors

They are perpendicular vectors

None of the above is correct

A wire is stretched to double of its length.The strain is

Choose an answer

2

1

Zero

0.5

Energy is stored in the choke coil in the form of

Choose an answer

Heat

Magnetic energy

Electric energy

Electro -magnetic energy

The conductivity of a superconductor is

Choose an answer

Infinite

Very large

Very small

Zero

A couple produces

Choose an answer

Purely linear motion

Purely rotational motion

Linear and rotational motion

No motion

For obtaining appreciable extension, the wire should be

Choose an answer

Short and thin

Long and thin

Short and thick

Long and thick

Radio waves of constant amplitude can be generated with

Choose an answer

Rectifier

Filter

FET

oscillator

The number of translation degrees of freedom for a diatomic gas is

Choose an answer

2

3

5

6

To explain his theory Bohr used

Choose an answer

Conservation of linear momentum

Conservation of angular momentum

Conservation of quantum frequency

Conservation of energy

For production of beats the two sources must have

Choose an answer

Different frequencies and same amplitude

Different frequencies

Different frequencies, same amplitude and same phase

Different frequencies and same phase

The dimensional formula of torque is:

Choose an answer

[ML²T^-2]

{MLT^-2]

[ML^-1T^-2]

[ML^-2T^-2]

If a diamagnetic substance is brought near north or south pole of a bar magnet it is

Choose an answer

Attracted by the poles

Repelled by the poles

Repelled by north pole and attracted by the south pole

Attracted by the north pole and repelled by the south pole

A boy is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

Choose an answer

80 m

20 m

160 m

40 m

If the dot product of two non-zero vectors vanishes, the vectors will be

Choose an answer

In the same direction

Opposite to each other

Perpendicular to each other

Zero

More Classes

Other Links

Physics General Science Test Hard 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