Question # 1

The formula of Brackett series can be obtained by putting in the general formula, the value of n equal to:

Choose an answer

one

two

three

four

five

On the power stroke, a spark fires the mixtures causing a rapid increase in pressure and temperature and the burning mixture expands

Choose an answer

adiabatically

isothermally

isochorically

isobarically

A diatomic gas molecule has

Choose an answer

translational energy

rotaional energy

vibrational energy

all of them

All the valence electrons present in a crystal of silicon are bound in their orbits by

Choose an answer

Ionic bond

covalent bond

Molecular bond

Both (A) and (B)

Both (B) and (C)

For the virtual image, option _______ is not correct:

Choose an answer

1/p = 1/f -1/q

1/f = 1/p -1/q

1/p=1/p-1/f

1/p=1/f+1/q

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

Choose an answer

turbulent

streamline

abrupt

none of them

Magnetic lines of force:

Choose an answer

Cannot intersect at all

Intersect at infinity

Intersect within magnet

Intersect at Neutral Point

None of these

If the distance between two charges is doubled, the force between them will become

Choose an answer

Double

Half

Three times

One fourth

One third

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Choose an answer

F =q(v/B)

F=q²(v x B)

F=q(v x B)

F= vx B

Which of the following is not an example of intertial frame

Choose an answer

a body placed on the surface of earth

a body placed in a car moving with uniform velocity

a body placed in a car moving with same acceleration

none of these

Mass of proton is of order of

Choose an answer

10^-31gm

10^-27kg

10^-24gm

10⁺²⁷kg

What is the S.I. unit of dipole moment ?

Choose an answer

cm

cm²

cm^-1

cm^-2

If the magnification M₁ = 20.0 for objective and M₂ = 12.0 then total magnification is

Choose an answer

200

240

260

280

The forces which forms a couple

Choose an answer

Can be replaced by a single equivalent force

cannot be replaced by a single equivalent force

Are perpendicular to each other

All of these

The shape of crystals other than a cube have

Choose an answer

Right angles

Not right angles

Not corners

None of these

When first condition of equilibrium is satisfied the body has

Choose an answer

no linear acceleration

no angular acceleration

rational equilibrium

none of them

T in Kelvin=_______

Choose an answer

273+°C

273-°C

273+°F

273-°F

Earth-Sun travel around the galaxy is

Choose an answer

220000 ms^-1

230000 ms^-1

210000 ms^-1

200000 ms^-1

The wavelength of refractive wave in a denser medium is

Choose an answer

Same as that of the incident wave

Become smaller than the incident

Becomes greater than the incident wave

None of these

A 120 m long train is moving in a direction with speed 20 m/s.A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

Choose an answer

6 s

36 s

38 s

None of these

The bottom of a container filled with liquid appear slightly raised because of

Choose an answer

Refraction

Interference

Diffraction

Reflection

Kinetic energy of rotation of the whole body is

Choose an answer

K.E._rot = lω

K.E._rot = lω²

K.E._rot = l²ω²

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