PHYSICS CH6 Light — Science STD 9 — Question

The direction of incident sound, direction of reflected sound and the normal are in different Planes.

State true or false. If false, correct the statement.

The maximum number of electron in L Shell is 10.

• True

• False

Weight has both magnitude and direction.

State whether true or false. If false, correct the statement.

Epithelial tissue is protective tissue in animal body.

• True

• False

Motion & rest are relative terms.

Conduction can be bidirectional in phloem tissue.

If the velocity of the body decreases with time the acceleration is negative and the motion is called decelerated motion.

State whether true or false. If false, correct the statement.

The weight of fluid displaced determines the buoyant force on an object.

• True

• False

State whether true or false. If false, correct the statement.

Vitamins are required in large quantities for normal functioning of the body

• True

• False

State whether true or false. If false, correct the statement.

Bipinnaria is the larva of Mollusca.

• True

• False