Physics-
General
Easy
Question
A ball is dropped vertically from a height 
above the ground. It hits the ground and bounces up vertically to a height 
Neglecting subsequent motion and air resistance, its velocity 
varies with the height 
above the ground as
The correct answer is:
For the given condition initial height 
and velocity of the ball is zero. When the ball moves downward its velocity increases and it will be maximum when the ball hits the ground & just after the collision it becomes half and in opposite direction. As the ball moves upward its velocity again decreases and becomes zero at height This explanation match with graph 
Related Questions to study
Physics-
The three initial and final position of a man on the 
axis are given as
i) 
ii) 
and iii) 
Which pair gives the negative displacement
The three initial and final position of a man on the axis are given as
i) ii) and iii)
Which pair gives the negative displacement
Physics-General
Physics-
A particle moving in a straight line with uniform acceleration is observed to be a distance 
from a fixed point initially. It is at distances 
from the same point after 
second. The acceleration of the particle is
A particle moving in a straight line with uniform acceleration is observed to be a distance from a fixed point initially. It is at distances from the same point after second. The acceleration of the particle is
Physics-General
Physics-
An aeroplane files 
north and 
south and then files 
upwards then net displacement is
An aeroplane files north and south and then files upwards then net displacement is
Physics-General
Physics-
Two bodies are thrown simultaneously from a tower with same initial velocity 
: one vertically upwards, the other vertically downwards. The distance between the two bodies after time 
is
Two bodies are thrown simultaneously from a tower with same initial velocity : one vertically upwards, the other vertically downwards. The distance between the two bodies after time is
Physics-General
Physics-
A particle starting from rest falls from a certain height. Assuming that the value of acceleration due to gravity remains the same throughout motion, its displacement in three successive half second intervals are 
.
Then,
A particle starting from rest falls from a certain height. Assuming that the value of acceleration due to gravity remains the same throughout motion, its displacement in three successive half second intervals are .
Then,
Physics-General
Biology
Large number of chloroplast are present in which of the following cells?
Large number of chloroplast are present in which of the following cells?
BiologyGeneral
Biology
Photosynthesis is maximum in
Photosynthesis is maximum in
BiologyGeneral
Biology
Which of the following is formed during photorespiration?
Which of the following is formed during photorespiration?
BiologyGeneral
Biology
Photosynthetic enhancement with flashing light was first observed by
Photosynthetic enhancement with flashing light was first observed by
BiologyGeneral
Biology
Aldolase enzyme is present in
Aldolase enzyme is present in
BiologyGeneral
Biology
Grana is ill developed or absent in the chloroplast in the
Grana is ill developed or absent in the chloroplast in the
BiologyGeneral
Biology
Maximum 
fixation is done by
Maximum fixation is done by
BiologyGeneral
Biology
Photorespiration could easily be detected in
Photorespiration could easily be detected in
BiologyGeneral
Biology
Malic acid or aspartic acid and oxaloacetic acid both are found in
Malic acid or aspartic acid and oxaloacetic acid both are found in
BiologyGeneral
Biology
Carboxylation 
-cycle) is the fixation of into
Carboxylation -cycle) is the fixation of into
BiologyGeneral
