CSIR NET 2018 Physical Science Question Paper (17-Jun-2018)

Question 1

In a 100 m race A beats B by 10 m. B beats C by 5 m. By how many meters does A beat C?

Accepted Answer

14.5 m

Answer

15.0 m

Answer

5.5 m

Answer

10.5 m

Question 2

Suppose (i) "A*B" means "A is the father of B", (ii) "A $\Delta$ B" means "A is the husband of B", (iii) "A $
abla$ B" means "A is the wife of B" and (iv) "A $\square$ B", means "A is the sister of B". Which of the following represents "C is the father-in-law of the sister of D"?

Accepted Answer

C * E $\Delta$ F $\square$ D

Answer

C $
abla$ E * F $\square$ D

Answer

C * E $
abla$ F $\square$ D

Answer

C $\Delta$ E * F $\square$ D

Question 3

In a group of 11 persons, each shakes hand with every other once and only once. What is the total number of such handshakes?

Accepted Answer

55

Answer

110

Answer

121

Answer

66

Question 4

Path of a ray of light between two mirrors is shown in the diagram. If the length of each mirror is '$l$', what is the total path length of the ray between the mirrors?

Accepted Answer

$2l$

Answer

$\frac{3}{4}l$

Answer

$\frac{4}{3}l$

Answer

$\frac{3}{2}l$

Question 5

What is the value of $(1+3+5+7+.....+4033) + 7983 	imes 2017$?

Accepted Answer

20170000

Answer

20172017

Answer

20171720

Answer

20172020

CSIR NET 2018 Physical Science Question Paper (17-Jun-2018)

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