LIC GMP is Going Down

Educational progress of child is going down day by day. The main reason will be:

How does the valency of elements vary is going down a group of the periodic table?

A simple pendulum is oscillating in a lift. If the lift is going down with constant velocity, the time period of the simple pendulum is T_(1) . If the lift is going down with some retardation its time period is T_(2) , then

Tension in the cable supporting an elevator, is equal to the weight of the elevator. From this, we can conclude that the elevator is going up or down with a

Block C shown in figure-1.79 is going down at acceleration 2 m//s^(2) . Find the acceleration of blocks A and B.

If the tension in the cable supporting an elevator is equal to the weight of the elevator, the elevator may be - (a) going up with increasing speed ( b) going down with increasing speed ( c) going up with uniform speed ( d) going down with uniform speed

For the hydrides of nitrogen family, in going down the group :