10 Questions

Questions and Answers

- 1.In quadrilateral ABCD, BM and DN are drawn the perpendicular to AC such that BM = DN. If BR = 8cm, then BD is
- A.
4 cm

- B.
2 cm

- C.
12 cm

- D.
16 cm

- 2.If p and q are two co-prime numbers then their H.C.F. is equal to
- A.
P

- B.
Q

- C.
1

- D.
Pq

- 3.The ratio of the area of a square to that of the square drawn on its diagonal is
- A.
1 : 1

- B.
1 : 2

- C.
1 : 3

- D.
1 : 4

- 4.If the area of the square is 72 sq. units. What is the length of its diagonal?
- A.
12 Units

- B.
13 Units

- C.
14 Units

- D.
None of these

- 5.If a body starts from a point and returns back to the same point, then its
- A.
Average velocity is zero but not average speed

- B.
Average speed is zero but not average velocity

- C.
Both average speed and velocity are zero

- D.
None of these

- 6.If a body moves with a constant velocity, then
- A.
Its acceleration is positive

- B.
Its acceleration is negative

- C.
Its acceleration is zero

- D.
Its speed is zero

- 7.Which one of the following is not a vector quantity?
- A.
Velocity

- B.
Acceleration

- C.
Kinetic energy

- D.
Force

- 8.The number of electrons present in an atom denotes
- A.
Mass number

- B.
Atomic number

- C.
Abundance

- D.
Reactivity

- 9.The term nucleons represent
- A.
Protons

- B.
Neutrons

- C.
Protons and neutrons

- D.
Electrons

- 10.Qualitative meaning of a formula
- A.
Tells about the name of the compound

- B.
Represents one molecule of the compound

- C.
Both a & b

- D.
Tells about the quality of the compound