Motion — Science STD 9 — Question

Practical uit of power:

Maximum intermolecular force of attraction exists in:

When the pitch of note produced by a harmonium is lowered, then the wavelength of the note:

1. Decreases.
2. First decreases and then increases.
3. Increases.
4. Remains the same.

Who reported that entity of an organism is not because of the cell but collection of many cells?

Choose the correct definition of Universal law of gravitation:

The mass of moon is about 0.012 times that of earth and its diameter is about 0.25 times that of earth. The value of G on the moon will be:

1. Less than that on the earth.
2. More than that on the earth.
3. Same as that on the earth.
4. About one-sixth of that on the earth.

Name the change of state in which naphthalene changes into vapour:

Four students A, B, C and D find the acceleration due to gravity at the top of Ooty, Nainital, Mount Everest and Shimla. The acceleration due to gravity is the least:

The mature cells in the mammalian body, i.e., RBC loses their capacity for:

Cardiac muscle fibres are: