CSIR NET 2017 Physical Science Question Paper (18-Jun-2017)

Question 1

An ant starts at the origin and moves along the $y$-axis and covers a distance $l$. This is its first stage in its journey. Every subsequent stage requires the ant to turn right and move a distance which is half of its previous stage. What would be its coordinates at the end of its $5^{	ext{th}}$ stage?

Accepted Answer

$\left(\frac{3l}{8}, \frac{13l}{16}\right)$

Answer

$\left(\frac{13l}{16}, \frac{3l}{8}\right)$

Answer

$\left(\frac{13l}{8}, \frac{3l}{16}\right)$

Answer

$\left(\frac{3l}{16}, \frac{13l}{8}\right)$

Question 2

In a group of siblings there are seven sisters, and each sister has one brother. How many siblings are there in total?

Accepted Answer

8

Answer

15

Answer

14

Answer

7

Question 3

What is the average value of $y$ for the range of $x$ shown in the following plot?

Accepted Answer

1.5

Answer

0

Answer

1

Answer

2

Question 4

A bread contains 40% (by volume) edible matter and the remaining space is filled with air. If the density of edible matter is 2 g/cc, what will be the bulk density of the bread (in g/cc)?

Accepted Answer

0.8

Answer

0.4

Answer

1.2

Answer

1.6

Question 5

A board has 8 rows and 8 columns. A move is defined as two steps along a column followed by one step along a row or vice-versa. What is the minimum number of moves needed to go from one corner to the diagonally opposite corner?

Accepted Answer

6

Answer

5

Answer

7

Answer

9

CSIR NET 2017 Physical Science Question Paper (18-Jun-2017)

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