RRB-General SCience-Quiz

1.What is the SI unit of pressure: (1)

1. Pascal
2. Dyne
3. Newton
4. Jule

2.When body is accelerated: (4)

1. its velocity never changes
2. its speed always changes
3. its direction always changes
4. its speed may or may not change

3.a given volume and temperature, the pressure of a gas (3)

1. varies inversely as its mass
2. varies inversely as the square of its mass
3. varies linearly as its mass
4. is independent of its mass

4. Xrays are steams of (2)

1. electrons
2. photons
3. protons
4. None of these

5.convex mirror is used to form an image of a real object. The image (4)

1. always lies between the pole and the focus
2. is diminished in size
3. is erect
4. all of the above