Question 111. To which one of the following process is the term CMYK [Cyan, Magenta, Yellow and Key (black)] related?

Question 112. In which one among the following is the speed of sound maximum?

Question 113. The variation of displacement d with time t in the case of a particle falling freely under gravity from rest is correctly shown in graph

Question 114. 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. 

Question 115. Rocket and a jet engine differ because
A.their working principles are entirely different.
B.a rocket uses only liquid fuels whereas a jet can use solid fuels as well.
C.while a rocket carries its own oxygen supply a jet draws its air out of the atmosphere.
D.a rocket can propel vehicles into outer space whereas a jet cannot.

Question 116. Match List I with List II and choose the correct answer from the codes given below the lists. 

Question 117. Optical fibre works on the principle of

Question 118. Consider the following natural phenomena
1.Terrestrial heating
2.Reflection of light
3.Refraction of light
4.Diffraction of light
Due to which of these phenomena is mirage formed?

Question 119. Consider the following statements about a thermos flask
1.It is a practical device in which the heat flowing into or out of the system by conduction, convection or radiation is reduced as much as possible.
2.It consists of a double-walled glass vessel.
3.The heat transfer by convection is minimised by silvering the surfaces and the radiation is minimised by evacuating the space between the walls.Of these, the correct ones are

Question 120. In 's third law, the action and reaction forces
1.act on different bodies
2.act on the same body
3.are not always equal
4.are always equal
Choose the correct answer from the codes given below: