Heat, Light and Sound

Heat transfer, reflection/refraction of light and sound waves.

Study notes are still being prepared.

Don't wait — Shishya can teach you this topic right now, on demand.

Need more? Ask Shishya

Shishya is your personal tutor for this topic. Pick a starter or open a free chat.

Q1 · Heat, Light and Sound · EASY
A student heats one end of an iron rod. After some time, the other end also becomes hot even though it is not directly in contact with the flame. Which mode of heat transfer is responsible for this?
Q2 · Heat, Light and Sound · MEDIUM
A ray of light traveling in air enters a glass slab at an angle of 60 degrees to the normal. What happens to the speed and direction of the light ray as it enters the glass?
Q3 · Heat, Light and Sound · MEDIUM
An echo is heard 4 seconds after a sound is produced near a cliff. If the speed of sound in air is 340 m/s, what is the distance of the cliff from the source of sound?
Q4 · Heat, Light and Sound · HARD
A concave mirror forms a real, inverted image of the same size as the object. If the focal length of the mirror is 15 cm, at what distance from the mirror is the object placed?
Q5 · Heat, Light and Sound · EASY
Which of the following is an example of a luminous object?