Question # 1

A metal road of length 1m is moving at a speed of 1 ms^-1In a direction making angle of 30º with 0.5 Y magnetic field. The emf produced in the rod is:

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0.25 N

0.25 V

2.5 V

2.5 N

25 V

If both the inputs given to a gate ae 1 such that the output is 0, then it is:

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AND gate

NOR gate

OR gate

NOT gate

Both (A) and (C)

The bicycle pump provides a good example of

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first law of thermodynamics

second law of thermodynamics

third law of thermodynamics

none of them

At resonance, the phase angle for RLC series resonance circuit equals

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0°

90°

180°

270°

The velocity given to a body to go out of the influence of earth's gravity is known as:

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Terminal velocity

Orbital velocity

Escape velocity

None of these

The first series which was identified in the spectrum of hydrogen is called:

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Lyman series

Balmer series

Paschen series

Brackett series

Pfund series

A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor

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Increases

Decreases

Remain unchanged

Becomes infinite

When platinum wire is heated, then at the temperature of 500 ^oC, it becomes:

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Yellow

Orange red

Dull red

White

Cherry red

Swimming becomes possible because of______law of motion:

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First

Second

Third

None of these

The relation between charge 'Q' and current 'I' is given by

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Q = I/t

Q = It

Q = I²t

Q = I²/t

When a bicycle is in motion but not pedaled, the force of friction exerted by the ground on the two wheels is such that it acts

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In the backward direction on the front wheel and in the forward direction on the rear wheel

In the forwards directions on the front wheel and in the backward direction on the rear wheel

In the forward direction on both the wheels

In the backward direction on both the wheels

The ratio of SI units to CGS units of gravitational constant G will be

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10^-3

10

10²

10³

The image formed by an eyepiece of compound microscope is

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Real and diminished

Real and enlarged

Virtual and enlarged

Virtual and diminished

Can you add zero to a null vector ?

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No

Yes

Yes in some cases

None of these

Aerodynamics is a branch of physics deals with the

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Thermodynamics

Hydrodynamics

Dynamics

None of these

The domains are of macroscopic size of the order of

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centimetres

metres

millimetres

nanometres

An alpha particle is accelerated through a potential difference of 10⁶ volt.Its kinetic energy will be.

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1 MeV

2 MeV

4 MeV

8 MeV

Equal charges are given to two spheres of different radii,The potential will

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Be more on the smaller sphere

Be more on the bigger sphere

Be equal on both the sphere

Depend on the nature of the material of the sphere

The more general form of second law of motion is

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F = ma

F × t = mV_f - mV_i

Both

None of these

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Bernoulli's equation

Torricelli's theorem

Venturi relation

None of these

The error in the measurement of radius of sphere is 0.3% The maximum error in the measurement of its volume

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0.6%

0.9%

0.3%

(4/3) π(0.3)²

When the second condition of equilibrium is satisfied, the body will be in

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complete equilibrium

translational equilibrium

rotational equilibrium

all of them

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