Question

Give one example where force changes the shape ol alt object.
The characteristics of the image formed by a plane mirror
a) It is virtual
b) It is erect
c) It is of same size as the object
d) All of the above
What is the use of lubricants?
Which metal is plated on handle bars of cycles and rim of wheels?
a) Aluminium
b) Iron
c) Chromium
d) Copper
State the First law of Reflection.
Why does a matchstick catch fire when rubbed on the rough surface o
Damaged seeds would
on top of water.
Microorganisms can be seen with the help of a​

Answer 1

1. Kneading the dough.
2. All of the above.
3. A lubricant is a substance that helps to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move.
4. Chromium
5. Angle of incidence = Angle of reflection.
6. Due to the heat generated by the friction.
7. Damaged seats would float on water.
8. Microscope.