1. The time period of a second’s found to be2 √ 6 . The acceleration due to gravity on
the surface of moon is :

2. Multimode step index fibre has a core of relatively larger diameter such is :

3. Optical fibres are of:

4. How many phone calls can be carried by single mode step index fibre:

5. A body falling freely under the action of gravity has :

6. A body mass 100 gm is suspended from a spring of force constant 50 N/M . The
maximum acceleration produced in the spring is:

7. Multimode graded index fibre core has diameter of:

8. A uniform plank of weight 20 N is 200 cm long and rests on a support that is 60 cm
from one end. At what distance from that end must on 80 N weight be placed in order
to balance the plank ?

9. Single mode step index fibre has a very thin core of about diameter :

10. Keeping a view the Earth’s surface , the value of g on the earth is :