When a light ray is reflected repeatedly by a set of parallel plane mirrors, the intensity of light rays decreases after some reflections. This is because of
A Poor reflection from mirrors
B Absorption of some amount of light by mirrors
C Dispersion of light when the rays travel through the atmosphere
D Scattering of light by the mirrors.
does mirror absorb some light.
Identify the birdm 'X' from the given characters.
1. It has strong, sharp and hooked beak.
2. It is a flesh-eating bird.
3. It has sharp, curved claws called talons.
Select the odd one out on the basis of causative agent.
(C) Whooping cough
The given figure shows the mechanism of breathing through lungs. From the following statements, select the statement that is incorrect with respect to the mechanism of inhaling.
(A) The breast bone moves forward.
(B) The diaphragm flattens.
(C) The ribs move downward and outwards.
(D) The ribs move upward and outwards.
my answer is 'd', is it correct?
Study the 4 set-ups below. Which two of them can be used to show that water expands when heated and contracts when cooled?
(a) P and Q
(b) Q and S
(c) P and S
(d) R and S
Ans 1: (Master Answer)
Unscramble the words to find the organism that undergo moulting.
(D) All of these
does maggot undergo moulting?