Tissues — Science STD 9 — Question

Mass number is denoted by:

The boiling point of liquid argon is:

1. -196°C
2. -183°C
3. -186°C
4. -193°C

Spreading of smell proves that _____________?

The principle behind fractional distillation technique in separation of two liquids is :

Two particles A and B of masses 20g and 30g, respectively are at rest at a certain time. Because of forces exerted by them on each other, the particles moving. At a given instant, particle A is found to m towards the East with a velocity of 6cm/s. What is the velocity of particle B at this instant?

Organelle without a cell membrane is:

What is an example of Electric Energy

The boiling points of diethyl ether, acetone and n-butyl alcohol are 35°C, 56°C and 118°C, respectively. Which one of the following correctly represents their boiling points in kelvin scale:

Increase in momentum by 20% will increase the K.E. by:

Water stored in a dam possesses:

1. No energy.
2. Electrical energy.
3. Kinetic energy.
4. Potential energy.