Question # 1

Distance covered by a freely falling body in 2 sec will be

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4.9 m

19.6 m

29.2 m

44.1 m

If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be

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6 ohm

4 ohm

zero ohm

1.33 ohm

Electron is a particle whose mass is:

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Greater than that of a proton

Smaller than that of a proton

Smaller than that of a proton or a neutron

Greater than that of an atom

A capacitor acts as an infinite resistance for

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AC

DC

Both AC and DC

Neither AC nor DC

In 1932 Chadwick discovered

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proton

neutron

photon

electron

SHM is type of ______ motion

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Vibratory

Linear

Circular

None

Work done along a closed path in a gravitational field is:

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Maximum

Minimum

Zero

Unity

The material in the form of wire or rod or plate which leads the current into or cut of the electrolyte is known as

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voltmeters

resistance

electrode

current

The current of 1 ampere is passing through a conductor. The charge passing through it in half a minute is:

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One coulomb

0.5 coulomb

30 coulomb

2 coulombs

None of these

When a water droplet falling freely through air, the drag force on water droplet increases with th

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decrease in speed

increase in speed

pressure

none of them

When a position comes close to an electron they annihilate into photons such that

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each photon has energy 0.51 Me v

each photon has energy 1.02 Me v

each photon has energy 0.25 Me v

none of these

The amount of heat required to raise the temperature of one mole of a substance through

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1 C°

1 K

0 K°

None of these

The approximate efficiency of Nuclear reactor

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33%

32%

39%

45%

The uranium Nucleus 𝟐𝟑𝟖 𝑼 undergoes successive decays, emitting respectively 𝑎 − 𝒓𝒂𝒚,𝖰 − 𝒓𝒂𝒚 𝒂𝒏𝒅 − 𝒓𝒂𝒚𝒔. What is the atomic number and atomic mass of the resulting nucleus:

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90, 238

91, 234

92, 236

92, 238

To decrease timing uncertainly

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Increase number of vibration

Decrease number of vibration

Increase length of pendulum

Decrease length of pendulum

Two bodies with masses M_A and M_b are moving with equal kinetic energy.Their linear momenta are numerically in a ratio

|P_A| : |P_b| will be:

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M_b : M_A

M_A : M_b

√M_A : √M_b

M²_A : M²_B

For the normal setting of a telescope

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Only the object is at infinity

Only the final image is at infinity

Both the object and the final image is at infinity

Neither the object nor the final image has to be at infinity

Arsenic antimony or phosphorus are impurities of

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p-type

n-type

May be p-type or n-type

None of these

Electric intensity inside a hollow sphere is

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Minimum

Maximum

q / c_o

Zero

While vibrating the atoms are at their

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Fixed positions

Extreme position

Average positions

None of these

Which of the following light move faster in water

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Red

Violet

Green

Blue

For obtaining equal and same height mirror should be

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Convex

Concave

Plane

None

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