Light can propagate_____
without medium
with medium
both are true
both are false

If a ray of light moves from a _______ medium to a _________ medium, total internal reflection does not take place [Fill in the blank].

A ray of light is refracted from medium 1 to medium 2. Show that the ratio of the sine of the angle of incidence and the sine of the angle of refraction is equal to the ratio of velocity of light in medium 1 and that in medium 2.

Given below are assertions and reasons point out if both are true with reason being correct explanation (A ),both are true but reason is not the correct explanation (B ) assertion is true but reason is wrong (C ) and both are wrong (D) Assertion.Duodenum is the main organ of small intestine Reason. In duodeum,digestion and absorption mainly occur

During the propagation of electromagnetic waves in a medium

The refractive index of a medium is a physical quantity having no dimension and no unit - is the statement true or false?

When light rays pass from medium I to medium j then refractive index of medium j with respect to medium I is expressed as i^(mu)j . Therefore what will be the product of 2^(mu)1, 3^(mu)2 and 4^(mu)3 ?

Given below are assertion and reason.Point out if both are true with reason being correct explanation,(A ) both true but reason is not correct explanation ( B),assertion true but reason is wrong (C ) both are wrong (D ). Assertion: Hcl converts pepsinogen into active enzyme pepsin Reason : Pepsin converts proteins into proteoses and peptones

Given below are asserton and reason point out If both are true with reason being correct explanation (A) both are true but reason is not correct explation (B) assertion is true but reason is worng ( C) and both are wrong (D ) Assertion . Amniocentesis is banned Reason : - AMniocentesis gives inforamtion about fortal abnormalities