1551: What is the purpose of evolved Laser Interferometer Space Antenna (eLISA) project?

(a) To detect neutrinos
(b) To detect gravitational waves
(c) To detect the effectiveness of missile defence system
(d) To study the effect of solar flares on our communication systems
1552: Assertion (A) :
An iron ball floats on mercury but gets immersed in water.

Reason (R) :
The specific gravity of iron is more than that of mercury.
(a) Both A and R are individually true and R is the correct explanation of A

(b) Both A and R are individually true but R is not a correct explanation of A

(c) A is true but R is false

(d) A is false but R is true
1553: Most guitarists are bearded males. If A represents all males, B represents bearded males and C represents all male guitarists, then the correct diagram for their relation (shaded portion) is
1554: Which one of the following diseases is least infectious ?

(a) Leprosy

(b) Tuberculosis

(c) Conjunctivitis

(d) Hepatitis
1555: Which of the following types of light are strongly absorbed by plants?

(a) Blue and red
(b) Yellow and violet
(c) Violet and orange
(d) Indigo and yellow