At noon the sun is directly overhead and have lesser here to travel through you and hence it will be reduced if the distance to be travelled in air is reduced less scattering leads to Sun appearing white as only ...

Fishes have heart which is two-chambered and they exhibit single circulation. Remember, four-chambered heart of birds and mammals exhibit double circulation and three-chambered heart of amphibians and reptiles depicts double circulation also.

Atomic number of X is 10, so this must be Ne (Neon), a noble or inert gas. This gas has complete octet configuration. Atomic number of Y is 17 as [2, 8, 7], so this must be chlorine (Cl). Chlorine ...

(i) All distances parallel to the principal axis are measured from the pole of the mirror. (ii) All the distances measured to the left of the origin (along – x-axis) are taken as positive while those measured to the right ...

Eye related problems generally cured by glass or lenses. Similarly, hypermetropia or farsightedness can be corrected by using convex lens of appropriate power and myopia by concave lens of appropriate power.