PHYSICS AND CHEMISTRY ASSIGNMENTS

A wave that can be transmitted through a material medium is called.....wave.

• Longitudinal

• Transverse

• Mechanical

• Electromagnetic

When the direction of a wave is parallel to the motion of its particles, the wave is called......wave.

• Mechanical

• Electromagnetic

• Longitudinal

• Transverse

The time to complete a cycle of wave is called.....

• Amplitude

• Frequency

• Period

• Wave length

In the expression T = 1/f, the 'f' represents

• Force

• Period

• Time

• Frequency

The frequency of a wave is 100Hz, what is its period?

• 0.01s

• 10s

• 100s

• 1000s

What Is the velocity of a wave of frequency 200Hz and wave length 0.1m?

• 10 ms-1

• 20 ms-1

• 0.2 ms-1

• 0.02 ms-1

The image in a plane mirror is always

• Real

• Virtual

• Inverted

• Enlarged

The changes in the direction, wave length and speed when wave through different media is

• Refraction

• Reflection

• Diffraction

• Interference

All these are characteristics of waves except

• Polarisation

• Reflection

• Rotation

• Interference

The angle of incident on a plane mirror is 40`, what is the angle of reflection?

• 50

• 40

• 30

• 20