Sample Paper Scholarship Test Worksheet With Answers - Dual/integrated Program For Two Year Page 3
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SP01/DIPTYIPTY/201618
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14. In the formation of a rainbow light from the sun on water
20. In an electrolyte 3.2 × 10
bivalent positive ions drift to
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droplets undergoes
the right per second while 3.6 × 10
monovalent negative
ions drift to the left per second. Then the current is :
(1) Dispersion only
(1) 1.6 amp. to the left
(2) 1.6 amp. to the right
(2) Only total internal reflection
(3) 0.45 amp. to the left (4) 0.45 amp. to the right
(3) Dispersion and total internal reflection
21. A convex lens of focal length 2m has an object placed at
(4) None of these
a distance of 0.5 m from it. The image formed is
15. A cell of negligible resistance of emf 2 volt is connected
(1) Real, at a distance of 2/3 m from the lens
to a series combination of 2, 3 and 5 ohm. The potential
difference in volt between the terminals of 3 ohm resistance
(2) Virtual, at a distance of 2/3 m from the lens
will be:
(3) Real, at a distance of 0.4 m from the lens
(1) 0.6 volt
(2) (2/3) volt
(4) Virtual, at a distance of 0.4 m from the lens
(3) 3 volt
(4) 6 volt
22. A convex lens forms a real image of a point object placed
16. A wire has resistance 12 ohms. It is bent in the form of a
on its principal axis. If the upper half of the lens is painted
circle. The effective resistance between the two points on
black, the image will
any diameter is equal to
(1) Be shifted downwards
(1) 12 ohms
(2) 6 ohms
(2) Be shifted upwards
(3) 3 ohms
(4) 24 ohms
17. In figure the ratio of current in 1W and 4W resistance is:
(3) Not be shifted
(4) Shift on the principal axis
4 W
23. A real object is placed in front of a concave lens of focal
2 W
length f, at a distance equal to f from the lens, then the
1 W
image is formed at:
0.3A
1 W
(1) Infinity
(2) A distance 2/f
(1) 1
(2) 3
(3) 1/2
(4) 1/3
(3) A distance f/2
18. A wire has a resistance 10 W. It is stretched by onetenth
(4) A distance 2f
of its original length. Then its resistance will be:
24. A plane mirror is approaching you at 10 cm per second.
(1) 10 W
(2) 12.1 W
You can see your image in it. At what speed will your image
approach you:
(3) 9 W
(4) 11 W
(1) 10 cm/sec
(2) 5 cm/sec
19. Resistances of 6W each are connected in the manner
shown in the following figure. The potential difference V
P
(3) 20 cm/sec
(4) 15 cm/sec
–V
is:
Q
25. A virtual image is formed by a plane mirror when the pencil
6W
6W 6W
of light is incident on the mirror, then the incident pencil
on the mirror is:
P
6W
Q
(1) Diverging
0.5A
6W
6W
(2) Parallel
(1) 3.6V
(2) 6.0V
(3) Converging
(3) 3.0V
(4) 7.2V
(4) All of these
Space Fo r Ro ugh Wo rk
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