Question # 1

When two waves having same frequency traveling in same direction combine, phenomenon is called

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Wave motion

Combination of waves

Interference

Diffraction

If a vector of magnitude 10 N along y-axis then its component along x-axis is

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0 N

5 N

8.66 N

10 N

The diameter of a lens is called

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Focal length

Aperture

Principle axis

Centre

Dark fringes are also called as

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Minima

Maxima

Wave front

Ray of light

The work done will be maximum when angle between F and d.

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180^o

0^o

90^o

60^o

Dimensional analysis helps in

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To convert one unti into another

Finding relation between quantities

To confirm the correct answer

All of the abvove

Teh overlapping of physics and other fields gave brith to

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Interdisciplinary areas of physics

Areas of Physics

Areas of science

All of these

Dot product of two non zero vectors is zero it angle between them is.

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30^o

60^o

45^o

90^o

The resultant of two forces 3 N and 4 N acting at right angle to each other is

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7 N

5 N

4 N

1 N

The lower reading of blood pressure is called.

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Systolic pressure

Diastolic pressure

Normal pressure

Non normal pressure

The mass of an object is quantitative measure 0 its

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Momentum

Acceleration

Inertia

Energy

__ will travel faster than other through an optical fibre.

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Ultraviolet light

Visible light

Infrared light

White light

A body starting from rest attains angular acceleration of 5 rad s-2 in 2 second final angular velocity will be.

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10 rad s-1

7 rad s-1

3 rad s-1

2 rad s-1

The trajectory of a projectile is.

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Circle

Parabola

Hyperbola

Straight line

If heat engine absorb 400 J and rejects 200 J heat energy, its efficiency will be.

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25%

50%

70%

100%

Physics bases on Newtonian mechanics is called

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astrophysics

Modern Physics

Classical Physics

Meta Physcis

Angular frequency is the characteristic of

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Linear motion

Vibratory motion

Circular motion

All of these

By increasing the amount of stretch in spring the force exerted will

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Increase

One watt

One erg

One joule

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