I am searching here question paper for Pre Ph.d Environmental Sciences subject examination of Jawaharlal Nehru University Delhi ?

Here I am giving you question paper for Pre Ph.d Environmental Sciences subject examination of Jawaharlal Nehru University Delhi in a PDF file attached with it .

A and B throw a coin alternately till one of them gets a head and wins the game. Assuming the coin to be unbiased, the probability that A wins the game is equal to
(a) 23
(b)13
(c) 0
(d) Cannot be determined

6. The equation of a plane passing through the point (1, - 1, - 1) and perpendicular to each
of the planes x-2y-8z=0 and 2x + 5y-z=0 is
(a) 5x-3y+7z-16=0
(b) 3x+7y- 9z+16=0
(c) 14x-5y+3z-16=0
(d) 7x-5y+9z+16=0

7. (f +i)6 is equal to -, if it is given that i2 = -1.
(a) 64
(b) -64
(c) 64i
(d) -64i

8. The series
x2 x4 x6
f(x)= 1--+---+...
2! 4! 6!
represents
(a) secx
(b) cos x
(c) sinx
(d) tan x

9. In 50 sec, 300 c.c. of oxygen diffuses through a porous plate. How long will it take
300 c.c. of chlorine to diffuse through the same plate? [Take molecular weight of oxygen
and chlorine as 32 and 72 respectively]
(a) 50 sec
(b) 75 sec
(c) 60 sec
(d) 85 sec

Attached Files

JNU Pre Ph.d Environmental Sciences Exam paper.PDF (773.2 KB, 139 views)