Question # 1

Huygen's principles states that:

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Light travels in straigth line

Light has dual nature

Either of these

None of these

The angle which specifies the instantaneous value of the alternating voltage or current is called

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phase

critical angle

angle of incidence

all of these

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

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1 : 2 : 3

1 : 3 : 5

1 : 4 : 9

None of the above

In AND gate, the output is 1 if:

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Both inputs are 0

Both inputs are 1

Only one input is 0

Both (A) and (B)

Both (A) and (C)

Work is a

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Scalar quantity

Vector quantity

Base quantity

None of these

1 J = ________?

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10⁷erges

10^-7erges

10⁵erges

10^-5erges

The current in LCR circuit will be maximum whenωis

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As large as possible

Equal to natural frequency of LCR system

The flux through a closed surface depends upon:

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Shape of geometry of the closed surface

Charge enclosed

Nature of the medium

Both (A) and (B)

Both (B) and (C)

Which is modified form of galvanometer

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potentiometer

battery

voltmeter

slide wire bridge

When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.

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Becomes half

Becomes zero

Ramains same

Becomes double

If one volt is needed to cause a current of one ampere to flow in a conductor, its resistance is

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one ohm

one joule

one volt

one ampere

Ratio of moment of inertia of two objects A and B is 2:3 which of the following is the ratio of torques of A and B respectively. If both are being rotated with constant angular acceleration

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3:4

2:3

3:2

4:3

A car travels due east on a level road for 3 km. it then turns the North at an intersection and travels 4 km before stopping.The magnitude of the resultant displacement of car is

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5 km

7 km

1 km

11 cm

The turning effect of a force is called

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Acceleration

Torque

Velocity

Momentum

The angular momentum is a vector quantity with due

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Perpendicular to the axis of rotation

Along the axis of rotation

At the axis of rotation

None of these

The rater of flow is measure in

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Liter-sec

Liter/sec

Liter/sec²

Sec/liter

A Celsius degree is larger than a Fahrenheit degree by

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5/9

9/5

9/10

9/8

In an adiabatic process

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Temperature remains constant

No change of internal energy

Volume remains constant

No heat enters or leaves the system

When the temperature of source and sink of heat engine become equal than efficiency of heat engine will

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Maximum

Minimum

Negative

Zero

By the slope of velocity time, we can determine the

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Acceleration

Constant velocity

Average velocity

Average acceleration

The energy needed to amplify and transmit the signals is provided by the satellite by

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Batteries

Generator

Solar cell panels

None of these

Einsteins theory donot tell the force of gravity acting on bodies instead, bodies and light maces along geodesies in

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Space time

Straight space time

Curved space time

All of these

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