Question # 1

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)

Units of impedance are

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Henry

Ohms

moh

Watt

Some charge is being given to a conductor. Then its potential

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Is maximum at surface

Is maximum at centre

Is remain same throughout the conductor

Is maximum somewhere between surface and centre

Suppose the water flows out from a pipe at 3kg s^-1and its velocity changes from 5m s^-1to zero on striking the wall, then the force exerted by water on wall will be

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5 N

10 N

15 N

20 N

The relation V = IR represents

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Ampere law

Faraday's law

Ohm's law

Len's law

Electric generators which convert mechanical energy into

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solar energy

thermal energy

kinetic energy

electrical energy

The number of different crystals systems based on the geometrical arrangement of their atoms and the resultant geometrical structure are

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5

7

9

14

Faraday's law of electromagnetic induction has been used in the construction of:

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Galvanometer

Voltmeter

Electric motor

Electric genrator

Commutator

A process is a reversible process, if the entropy of the system

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increases

decreases

remains constant

none of them

An electric field is generated along the wire when:

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Its resistance is very high

A constant potential is maintained across the wire

Net current through the wire is zero

A constant potential difference is maintained across the wire

Either (A) or (D)

The measure of the deformation in a solid when stress is applied to its is called

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elastic constant

young's modulus

strain

elasticity

The ratio of linear stress/linear strain is called as

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Young's modulus

Bulk modulus

Shear modulus

Modulus

In Toricelli's theorem, the speed of efflux is equal to

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h₁ - h₂

Action of gravity

(h₁ - h₂) and falling under gravity

None of these

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1 PV

2 PV

1/2 PV

Zero

Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively.Which one of the following is true?

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Their range will be same

Their maximum height will be same

Their landing velocity will be same

their time of flight will be same

A 5 kg weight is accelerated from rest to 60 m/s in 1 sec What force acts on it

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5 x 60 N

(5/60) x 981 N

(60)² x 52 N

(5/2) x 60² x 981 N

At what point/points in its path does a projectile have it minimum speed

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At the point of projection

At maximum height

All the point where it strikes the ground

None of these

The speed of sound in air is

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320 ms^-1

323 ms^-1

330 ms^-1

333 ms^-1

For interference to occur, the light coming from the two slits should

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be monochromatic

come from the same source

have a constant path difference

all of them

The principle of rocket motion is based on the

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First law of motion

Second law of motion

Third law of motion

None of these

Fractional error in a measured quantity is determined by

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Measured value / Absolute error

Absolute error / Measured value

Measured value + Absolute error

Measured value - Absolute error

The object is placed at the principle focus of a simple microscope if the focal length of the lens is 2cm what is the magnifying power of the microscope

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13.5

12.5

Infinity

None of these

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