Question

14
(c)
Complete the path of the ray AB over plane mirrors Mi and M2 and label all the
angles of incidences.
M2
А.
BSP
M1
Question 9
(a) (i) Why does a piece of steel sink in water but float on mercury?
(3
(ii) If a bowl is formed from the same steel piece then it can float in water.
Why?
(b) The diagram below shows a frozen pond in a cold region.
13
() State the expected temperatures at A and B.
(ii) Name the phenomenon responsible for these temperatures mentioned in
part (0)
Air below 0°c​

Answer 1

Answer:

А.

BSP

M1

Question 9

(a) (i) Why does a piece of steel sink in water but float on mercury?

(3

(ii) If a bowl is formed from the same steel piece then it can float in water.

Why?

(b) The diagram below shows a frozen pond in a cold region.

13

() State the expected temperatures at A and B.

(ii) Name the phenomenon responsible for these temperatures mentioned in

part (0)

Air below 0°c