Question

D. Match the columns.
1. Static friction
2. Non-contact force
a. spikes in athletes' shoes
b. regular oiling
c. electrostatic force
3. Reducing friction
4. Increasing friction
d. area of surface in contact
5. Contact force
e. a box kept on the floor
f. pulling an object by a rope​

Answer 1

Explanation:

For normal incidence on a plane mirror identify which of these statements are true --

(I) Both the angles of incidence and reflection are 0 degree .

(II) Both the angles of incidence and reflection are 90 degree .

(III) The angles that both the incident ray and the reflected ray make with the mirror surface are 0 degree .

(IV) The angles that both the incident ray and the reflected ray make with the mirror surface are 90 degree ..

A) Only (I) is true .

B) Only (II) is true .

C) Both (I) and (III) are true .

D) Both (I) and (IV) are true .

pls tell fast and pls tell the right answer

Answer 2

Answer:

lol the answer is correct