X Quarterly 18.8.2021

What is the mechanical advantage of single movable pulley.......

Write the formula for mechanical advantage of a machine.......

When M.A. acts as a force multiplier......

The force applied on the machine to overcome the load is called.....

Effort is applied upwards so it's M.A. and V.R. is..........than the total number of pulleys

The M.A. of an ideal single fixed pulley is.......

When a ray of light from air enters a denser medium it.......

.........is the highest refractive index.

A ray of light suffers refraction through an equilateral prism. The deviation produced by the prism does not depends on the.......

A small air bubbles in a glass block when seen from above appears to be raised because of.........