Question # 1

The fundamental quanties which form basic for M.K.S system are

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Mass , Length , and time

Mass, acceleration and time

Mass, work and time

Velocity, force and time

Force 12 N and 5 N are add, the resultant con not be

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13 N

6 N

7 N

17 N

If a stretched string 4 m long and it has 4 loops of stationary waves, then the wave length is.

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1m

2 m

3 m

4 m

The instrument which detects the instant as which the external pressure becomes equal to the systolic pressure is called.

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Manometer

Sphygmomanometer

Barometer

Stethoscope

Increase in speed of sound for 1 ^oC rise in temperature is.

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0.61 ms-1

0.61 cms-1

61 ms-1

6.1 ms-1

The curve representing an adiabatic process is called.

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An adiabatic

An isotherm

Both of these

None of these

The K.E. of bullet of mass 500 gm moving at a speed of 200 ms-1

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250 J

125 J

2500 J

10,000 J

A constant temperature, if pressure of a given mass of gas is halved, then its volume becomes.

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Halve

Doubled

Four time

Constant

The area between velocity time graph and the time axis is numerically equal to.

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?Speed of object

Distance covered by the object

Average velocity of the object

Acceleration of the object.

If 332 waves pass through a medium in 1 second with speed of 332 ms-1 then wavelength will be

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7 m

332 m

664 m

1 m

In an object is placed in between focus point and Opticla center of a convex lens, the image formed by lens is.

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Real inverted

Virtual diminshed

Virtual inverted

Virtual erected

Which one of the following force cannot do any work on the particle on which it acts.

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Fractional force

Gravitational force

Electrostatic force

Centripetal force

Boltzman constant 'k' has same unit as.

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Temperature

Energy

Entropy

Pressure

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

The efficiency of any heat engine can never be

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+ve

100%

-ve

None of these

Example of thin film is.

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Soap burble

convex lens

Concave lens

Glass plate

Head to tail rule is used for

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Addition of vectors

Subtraction of vectors

Multiplication of vectors

Division of vectors

The magnifying power of a convex lens of focal lendth 10 cm is

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7

9.6

11

3.5

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