Question

True/False a) The image formed by a plane mirror can be obtained on a screen. b) Still air is insulator of heat. c) A red rose seen in green light will appear black. d) Liquid expand less than solid. e) Magenta, cyan and yellow are primary colours. you f) Black surfaces are good reflector of heat. g) Angle of incidence is always equal to angle of reflection. h) Telephone wires are kept tight between two poles in summer. i) Speed of light in air is maximum. j)Land and sea breezes are Convection currents of cold and warm air.​

Answer 1

Answer:

C answer is false

A answer is false

Answer 2

Answer:

A is false

B is false

C is True

D is false

E is true

F is true

G is true

H is true

I is true

J is true

Explanation:

A is false because The image formed by a plane mirror is virtual and erect in nature and virtual images cannot be obtained on a screen.

B is false because Air is the indigenous gaseous component in the atmosphere. ... Hence, the statement “Air is a good conductor of heat” is False.

D is false because When a solid is heated, its atoms vibrate faster about their fixed points. ... Liquids expand for the same reason, but because the bonds between separate molecules are usually less tight they expand more than solids.

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