Question # 1

A couple produces

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Purely linear motion

Purely rotational motion

Linear and rotational motion

No motion

At a certain instant a stationary transverse wave is found to have maximum kinetic energy the appearance of string of that instant is:

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Sinusoidal shape with amplitude A/3

Sinusoidal shape with amplitude A/2

Sinusoidal shape with amplitude A

Straight line

What is the ratio of r.m.s velocity for O₂ to H₂?

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1/4

4

√4 : 1

1 : √4

The dimensional formula of toque is:

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[ML²T²]

[MLT²]

[ML^-1T^-2]

[ML^-2T^-2]

If two non-zero vector ̅A̅ and ̅B are parallel to each other, then ̅A̅, ̅B is equal to

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Zero

AB

A + B

A - B

The minimum wavelength of the X-rays produced by electrons accelerated through a potential difference of V volts is directly proportional to

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√V

V²

1/√V

1/V

Electrons in the atom are held in the atom due to

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Coulomb forces

Nuclear forces

Gravitational forces

Van der Waal's forces

What will be the ratio of the distance moved by a freely falling body from rest in 4^th and 5^th seconds of journey?

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4 : 5

7 : 9

16 : 25

1 : 1

The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90° with the force of the smaller magnitude then their magnitude are:

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3, 15

4, 14

5, 13

6, 12

One cannot see through fog because

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Fog absorbs light

The refractive index of fog is infinity

Light suffers total reflection at the droplet in a fog

Light is scattered by the droplets in fog

Which of the following is not thermo dynamical function?

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Enthalpy

Work done

Gibb's energy

Internal energy

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