Question # 1

If we draw a graph between d (along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis, then area under this straight line represents:

Choose an answer

Power

Work

Pressure

None of these

Acceleration in a body is always produced in the directin of:

Choose an answer

Velocity

Weight

Force

Botha B and C

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Choose an answer

very small energy

very large energy

frictional forces

acceleration due to gravity

A circuit has a resistance of 11Ωan inductive reactance of 25Ωand a capacitance reactance of 18Ω. It is connected to an a.c. source of 200 V and 50 Hz. The current through the circuit (in amperes) is

Choose an answer

11

15

18

20

Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:

Choose an answer

Is smaller than

Is greater than

Becomes equal to

None of these

The galvanometer can be made sensitive if the value of the factor C/BAN is

Choose an answer

constant

small

large

none of these

The example of reversible process is

Choose an answer

an explosion

changes occur suddenly

slow compression of a gas

all of them

Two forces of 10 N and 8 N are applied simultaneously to a body. the maximum value of their resultant is:

Choose an answer

2 N

- 2 N

18 N

36 N

Which of the following is not mechanical wave?

Choose an answer

Sound wave

Light wave

wave produced in spring

None of them

Example of progressive wave is

Choose an answer

transverse waves

longitudinal waves

both of them

none of them

The open loop gain of OP-AMP is of the order of

Choose an answer

10²

10³

10⁴

10⁵

The dimensions of the coefficient of viscosity are

Choose an answer

[ML^-1T¹]

[MLT]

[M^-1L^-1T¹]

[M⁰L⁰T⁰]

Gaussian surface may be

Choose an answer

Spherical

Rectangular

Any shape

None of these

The number of different crystals systems based on the geometrical arrangement of their atoms and the resultant geometrical structures are

Choose an answer

5

7

9

14

One cannot see through fog because

Choose an answer

Fog absorbs light

The refractive index of fog is infinity

Light suffers total reflection at the droplet in a fog

Light is scattered by the droplets in fog

A progressive sound wave is a means of transferring energy. A progressive sound waveof constant frequency is generated in air. The intensity of energy transfer is directlyproportional to another of the wave parameters. Which of the following is correct?

Choose an answer

Intensity 𝖺 (𝑎𝑚𝑝𝑙𝑖𝑡𝑢𝑑𝑒)²

Intensity 𝖺 (𝑝𝑒𝑟𝑖𝑜𝑑𝑖𝑐 𝑡𝑖𝑚𝑒)²

Intensity 𝖺 (𝑠𝑝𝑒𝑒𝑑)²

Intensity 𝖺 (𝑤𝑎𝑣𝑒𝑙𝑒𝑛𝑔𝑡ℎ)²

When a body moves with a constant speed along a circle

Choose an answer

No work is done on it

No acceleration is produced in the body

No force acts on the body

Its velocity remains constant

A fly wheel of moment of inertia 500 kgm² is rotating at a angular speed of 6 rad s^-1. What torque is need to stop the wheel in 3 sec ?

Choose an answer

500 Nm

100 Nm

1500 Nm

2000 Nm

The torque is zero when the angle between F and r is

Choose an answer

90^o

180^o

270^o

0^o

The force applied on unit area to produce any change in the shape, volume or length of a body is known as

Choose an answer

strain

elasticity

stretching

stress

1 revolution is equal to

Choose an answer

2π radian

360^o

Both

None of these

Spectrometer can measure quite accurately prism

Choose an answer

Deviation of light by a glass prism

Angle of prism

Refractive index of the material of prism

None of these

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