Question # 1

Kinetic energy of the molecules depends on its:

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Temperature

Surface are

Density

Volume

Decrease in atmospheric pressure predicts:

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Rainy condition

Intense condition

Windy Condition

Pleasant condition

States of equilibrium are:

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2

3

4

5

The first man who came up with the idea of gravity was?

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Issac Newton

Einstein

Faraday

J,S Joseph

Land and Sea breezes are the results of:

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Conduction

Convection

Radiation

Conduction and Radiation

When 10 N along positive x-axis and 7 N along negative x-axis are added by head to tail rule. The resultant force is:

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17 N

10 N

7N

3 N

A physical quantity possesses characteristics.

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2

3

4

5

In Einstein's mass-energy equation, c is the

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Speed of sound

Speed of light

Speed of electron

Speed of Earth

A large water reservoir heeps the temperature of nearby land moderate due to:

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Low temperature

Low specific heat of water

Less absorption of heat

Large specific heat of water

The value of G is __________ Nm² kg^-2.

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6.67 x 10^-11 Nm² kg^-1

6.67 x 10^-11Nm²kg

6.67 x 10^-11Nm²kg^-2

6.67 x 10^-11Nm kg^-1

1 micro =

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10^-3

10^-6

10^-2

10^-12

In a convex mirror the size of the image:

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Is smaller than the size of the object

Is greater than the size of the object

Depends upon the position of the object

Is equal to the size of the object

Simplest electrical circuits use:

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One wire

Two wires

Four wires

Five wires

1 Pico farad is equal to:

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10^-9F

10¹²F

10^-12F

10^-6F

Intensity level of the sound produced by mosquito buzzing is:

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70 dB

40 dB

10 dB

120 dB

The energy is transferred from one place to another:

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Through matter

Thouth waves

both a and b

None of these

When a uranium (92 protons) ejects a beta particle, how many protons are left in the remaining nucleus?

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92 protons

91 protons

93 protons

89 protons

The speed of sound in air at 21 °C is:

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336ms^-1

343ms^-1

430ms^-1

470ms^-1

If A input is 1 and B is zero, then in AND operation output will be:

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0

0.1

1

None of these

CD which is made of soft material is called:

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Hard disk

Floppy disk

Iron disk

Copper disk

The half life of radium 226 is

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1600 year

1610 years

1620 years

1630 years

The diameter of spherical mirror is called:

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Curvature

Aperture

Sphere

Both a and b

The law of conservation of energy gives us

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Equation of continuity

Stock's law

Bernoulli's equation

Viscosity

The centre of Newton's fringe is dark due to.

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Destructive interference

Diffraction

Constructive interference

Polarization

Waves transport energy without transporting

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Matter

Force

Momentum

All of these

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The actual efficiency of property turned petrol engine is.

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20% to 30%

30% to 35%

40% to 45%

25% to 30%

Frequency 'f' and time period 'T' are related as

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A body covers a distance of 10 m in 1 sec with a constant velocity of 10 ms-1 , Acceleration produced by the body is.

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0 ms-1

2 ms-2

5 ms-2

10 ms-2

A stretched string 2 m long and it has 2 hopes of stationary waves hen the wavelength is

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4 m

2 m

3 m

1 m

Time period of geostationary satellite of radius 'R' is

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1 hour

48 min

1 day

1 month

The components of a vector which are perpendicular to each other are called

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Horizontal components

Vertical components

Rectangular components

All of these

Michelson's interferometer can be used ot find the

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Velocity of light

Wavelength of light

Velocity of sound

Wavelength of sound

The energy equivalent of 1 kg of matter is about:

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10^-15 J

1 J

10^-12J

10^-17J

1 rad =

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0.001Gy

0.01Gy

0.1Gy

1.01Gy

The symbol of p-n-p transistor is

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Charge on an atom is:

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Positive

Negative

Neutral

None of these

The crystalline structure of NaCl is.

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Cubical

Hexagonal

Tri gonal

Tetragonal

The ratio Beta in transistor is called.

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Voltage gain

Emitter gain

Current gain

Nuclear gain

If the number of turns become double but length remain same, then magnetic field in the solenoid become.

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Half

Double

Remain same

Zero

The magnetic flux will be max, For an angle of:

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0°

60°

90°

180°

Various types of cancer are treated by

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Carbon -14

Nickel -63

Cobalt -60

Strontium -90

In Helium Neon laser, the discharge tube is filled with

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80% He, 20% Neon

85% He, 15% Neon

83% He, 17% Neon

90% He, 10% Neon

For rectification we use.

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Transformer

Diode

Choke

Generator