Question

multiple choice questions
1. a polished silvery surface is :
(a) good absorber of heat
(c) poor reflector of heat
(b) good reflector of heat
(d) none of these

2. a thermos flask prevents loss or gain of heat by:
(a) conduction only
(b) convection only
(c) radiation only
(d) all of these

3. sea breeze is caused due to:
(a) conduction
(b) convection
(c) radiation
(d) all of these

4. the sun heat comes to us by the process :
(a) radiation
(b) conduction
(c) convection
(d) none of these

5. bodies transmitting heat via radiation:
(a) do not require any medium
(b) are liquids only
(c) make heat travels in one direction only
(d) solids only​

Answer 1

Answer:

1 . b] good reflector of heat

2 . d] all of these

3 . b] convection

4 . a] radiation

5 . a] does not require any medium

Explanation:

Answer 2

Answer:

1)a) good reflector of heat

2)c) radiation

3)a)conduction

4)d)none of this NOT confident

5)b)are liquid only