Question

Selects and writes the correct Answer………………………… (07)

i) Which of the following is fundamental unit?

a) cm b) kg c) centigrade d) volt

ii) For two vectors to be equal, they should have.

a) The same magnitude.

b) The same direction.

c) The same magnitude and direction.

d) The same magnitude but opposite direction.

iii) The magnitude of scalar product of two unit vectors

Perpendicular to each other is.

a) Zero b) 1 c)-1 d) 2

iv) For a particle undergoing a uniform circular motion. Which of

the following is constant?

a) Speed b) Acceleration c) Velocity d) displacement

v) A particle moves in a circular path of radius 10 cm with a

constant Speed of 10 cm/s with a constant speed of 10 cm/s its

Acceleration is.

a) 100 cm/s2 b) 10 cm/s2 c) 1cm/s2 d) Zero

VI) Correct up to 3 significant figures 2.28 x 106 + 8.34x105=………..

a)10.6x106 b)3.11x106 c)1.06x106 d)3.11x105​

Answer 1

Answer:

1. Which of the following is fundamental unit?

A. Kg

2. For two vectors to be equal, they should have.

A. The same magnitude and direction  

3. The magnitude of scalar product of two unit vectors  perpendicular to each other is.

A. Zero  

4. For a particle undergoing a uniform circular motion. Which of  the following is constant?

A. Speed  

5. A particle moves in a circular path of radius 10 cm with a   constant speed of 10 cm/s, its  acceleration is.

A. 10cm / s²    

6. Correct up to 3 significant figures 2.28 x 10⁶ + 8.34 x 10⁵=………..

A. 3.11 x 10⁶