Question

Q.1 A) Fill in the blanks.
1) A ray of light parallel to the principal aris of a conave mirror, after refletion passes
through.....
2) ................ cells control the opening and closing of stomata.
3) The magnification produced by a .............. ... mirror is always positive
B) Answer whether following statements are true or false. (any 2)
1) Laterf of rubber is useful substance for the plants.
2) A concave mirror is a converging mirror.
3) There are 12 pairs of cranjal nerves and 31 pairs of spinal nerves​

Answer 1

Answer:

1:-the focus of a mirror.

3:-concave lens

B

1:-False. It is useful for human beings.It helps us to make eraser

2:-True