Question # 1

In magnet-coil experiment, emf can be produced by:

Choose an answer

Keeping the coil stationary and moving the magnet

Keeping the magnet stationary and moving the coil

Relative motion of the loop and magnet

Any one of above

All above

What is another name for laminar flow?

Choose an answer

streamline

unsteady flow

turbulent flow

both (a) and (b)

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Choose an answer

Zero

10.2 J

100 J

980 J

A 100 W, 200 V bulb is connected to a 160 volts supply. The actual power consumption would be

Choose an answer

64 W

80 W

100 W

125 W

Which of the following substances has got positive temperature coefficient of resistance?

Choose an answer

Carbon

Germanium

Silicon

Aluminium

None of these

The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called

Choose an answer

diamagnetic substances

ferromagnetic substances

paramagnetic substances

all of them

If the radius of first orbit of hydrogen atom is 0.53° A the radius of second orbit will be

Choose an answer

2.120°A

0.212°A

21.2°A

0.14°

a

When a dielectric material is introduced between the plates of a charged condenser the electric field between the plates

Choose an answer

Decreases

Increases

No change

May increase or decresase

The rate change of area expressed is expressed in:

Choose an answer

m²s^-1

ms^-2

m²s^-2

ms^-1

None of these

In photoelectric effect the energy of ejected electrons depend on

Choose an answer

The frequency

The intensity

Both frequency and intensity

None of these

A massive object falls through a fluid:

Choose an answer

Faster

Slower

Slowest

None

The stopping potential for a certain metal is 10 volt, the max. Energy of emitted electron is:

Choose an answer

10 J

100 J

1.6 × 10-18 J

1.6 × 10-19 J

A whistle is revolved with high speed in a horizontal circle of radius R. to an observer at the centre of the circle the frequency of the whistle will appear to be:

Choose an answer

Decreasing

Increasing

Both

Constant

The ratio of volume stress/volume strain is called as

Choose an answer

modulus

Bulk modulus

shear modulus

Young's modulus

The original source of solar energy is

Choose an answer

Moon

Sun

Stars

Earths

Identify practical use of superconductor

Choose an answer

MRI

Super computer

Magnetic levitation train

All above

Two forces of 12 N and 8 N act upon a body.The resultant force on the body has a maximum value of:

Choose an answer

4 N

0 N

20 N

8 N

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

In multi-mode step index optical fibre, that layer is called cladding which has

Choose an answer

higher refractive index

lower refractive index

both of them

none of them

The angle subtended at the center of sphere by an area of its surface equal to the half of square of its radius is

Choose an answer

1 sr

2 sr

1/2 sr

none of these

Which of the following is not true for a crystalline substance

Choose an answer

Shorter range order

Isotropic electrical conductivity

Flat surface

Sharp melting point

Taking the earth to be a spherical conductor of diameter 12.8 x 10³ km its capacity will be:

Choose an answer

711 μF

611 μF

811 μF

511 μF

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