Light and Sound

Light is a/an?

• EM wave

• Mechanical wave

• Matter wave

• Broglie wave

Sound is a/an?

• Matter wave

• EM wave

• Mechanical wave

• Broglie wave

Light and Sound get reflected when struck to?

• Hard surfaces

• Soft surfaces

• Depends on various factors

• None

The speed of light in vacuum is?

• 3x10⁵ km/s

• 3x10⁸ km/s

• 3x10³ km/s

• 3,00,000 km/s

_______________ is made of photons which are a type of bosons.

Sound mirror refracts sound.

• True

• False

• Depends

• There is nothing like sound mirror

Real Image is formed in ________ mirror

• Convex

• Concave

• Plane

• None of the above

______________ is the minimum distance for an echo.

___________ is used by a SONAR

What is the study of light and mirrors called?

• Cytology

• Astrology

• Optics

• Thermodynamics