Question # 1

A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m³during its steady flow

Choose an answer

1.3 m/s

1.6 m/s

1.9 m/s

2.2 m/s

Alternating current can be transmitted:

Choose an answer

To long distance

At very high cost

At very low cost

Both (A) and (C)

Both (A) and (B)

A rocket carries its own fuel in the form of

Choose an answer

liquid only

liquid or solid

liquid and solid

liquid or solid and oxygen

A typical four stroke petrol engine undergoes how many successive processes in each cycle

Choose an answer

one

two

three

four

A body with frequency would complete one vibration in:

Choose an answer

f seconds

1/f seconds

1 second

f²second

Which of the following is not a unit of power:

Choose an answer

J-sec

Watt

N m/sec

Horsepower

Which one the following gives three regions of electromagnetic spectrum in order of increasing wavelength?

Choose an answer

Gamma rays, micro waves, visible light

Radio waves, ultraviolet waves, X-rays

Ultraviolet rays, infrared rays, micro waves

Visible light, gamma rays, radio waves

An object undergoes SHM. Its maximum equilibrium positions:

Choose an answer

Maximum

Half of its maximum value

Zero

None

The product of force and time is called change in:

Choose an answer

Momentum

Impulse

Force

Both a and b

The internal energy of a system does not depend upon the

Choose an answer

initial state of the system

final state of the system

path

none of them

A unit cell is smallest basic structure which is:

Choose an answer

One dimensional

Two dimensional

Three dimensional

Four dimensional

None of these

Angular displacement is a vector quantity for

Choose an answer

Small value of Δθ

Very small value of Δθ

All values of Δθ

None of these

The rotational analogue of power is given by

Choose an answer

τω

τv

F ω

τ/ω

The relative permitivity ∈_r for distilled water is

Choose an answer

2.9

1.0008

2.0

2.1

When θ = 0 in relation d sinθ = λ, the path difference between the rays coming out from the slits of the grating will be zero. So the image in this directions is

Choose an answer

Dark

Bright

Non image formed

None of these

In electromagnetic waves electric and magnetic field ar

Choose an answer

Parallel

Antiparallel

Perpendicular

Sometimes parallel sometimes perpendicular

The number of significant figures in all the given number 25.12.2009,4.156 and 1.257 x 10^-4 is

Choose an answer

1

2

3

4

Steel is more elastic than rubber because

Choose an answer

It is a metal

Its density is higher

Ratio of stress to strain is more

Ratio of stress to strain is less

The work done in placing a charge of 8 x 10^-18C on a condenser of capacity 100 μ F is

Choose an answer

32 x 10^-32 j

16 x 10^-32j

3.1 x 10^-26j

4 x 10^-10j

A body is in complete equilibrium when

Choose an answer

ΣF = 0

Στ = 0

SF = 0 and Στ = 0

None of these

The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart,with force of repulsion between the spheres to be 10^-19 N,is

Choose an answer

25

225

625

1250

When a ray of light enters a denser medium from a rarer medium,its:

Choose an answer

Wavelength increases

Velocity increases

Frequency decreases

Wavelength 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