1. A man with a dark skin, in comparison with a man with a white skin, will with a man with a white skin, will experience.
a) Less heat and less cold
b) Less heat and more cold
c) More heat and less cold
d) More heat and more cold
2. Which type /types of pen uses / use capillary action in addition to gravity for flow of ink?
a) fountain pen
b) ballpoint pen
c) gel pen
d) both ballpoint and gel pens
3. a thin pin of iron can be made to float on water – drinking in a bowl. This phenomenon is due to the
a) surface tension of water
b) viscous nature of water
c) presence of ionic bonds in water molecules
d) presence of covalent bonds in water molecules
4. in a sitar wire which one of the following types of vibration is produced?
A) progressive longitudinal
B) Stationary longitudinal
C) progressive transverse
D) Stationary transverse
5. Which of the following statements is Are true regarding a light wave travelling from air to glass?
1. Its frequency remains unchanged.
2. Its speed changes.
Select the correct answer using the codes given below
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor 2
6. If small raindrop falls through air
a) Its velocity goes on increasing
b) Its velocity goes on decreasing
c) Its velocity goes on increasing for some time and then becomes content
d) It falls with content speed for some time and then its velocity increases.
7. To start you loaded trolley bag, you exert more force than when it is moving . this is an example of
a) First law of thermodynamics
b) Second law of thermodynamics
c) Newton’s second law of motion
d) Newton’s first law of motion
8. Who invented the LASER?
a. sir frank whittle
b. Fred Morrison
c. Charles H Townes
d. Seymour Cray
9. Which of the following is / are cited by the scientists as evidence / evidences for the continued expansion of universe?
1. Detection of microwaves inn space.
2. Movement of asteroids in space.
3. Occurrence of supernova explosions in space
Select the correct answer using the score given below
a) 1 and 2
b) Only 2
c) 1,3 and 4
d) None of these
10. You placed a car in an open a packing area in a summer day. After a few hours, your noticed that the heat is trapped inside the car. This phenomenon is known as
a) ozone depletion
b) greenhouse effect
c) solar effect
d) cosmic ray impingement
ANSWERS
1.a
2.a.
3.a.
4.d
5.c.
6.c
7.a
8.c
9.b
10.b