Q1. The best conductor of heat among the following
A)
Alcohol
B)
Mercury
C)
Ether
D)
Water
Q2. Who discovered wireless communication
A)
Hertz
B)
Maxwell
C)
Marconi
Q3. What is number of neutral points for a bar magnet with
its north pole pointing geographical north?
A)
Zero
B)
One
C)
Two
D)
Infinite
Q4. What is the phenomenon of the moon to appear bigger in
size as it approaches the horizon, called
A)
Atmospheric refraction of light
B)
Diffraction of light
C)
Scattering of light
D)
Total internal reflection of light by water
vapours
Q5. Which zone of a candle flame is the hottest
A)
Dark innermost zone
B)
Outermost zone
C)
Fiddle luminous zone
D)
Central zone
Q6. Which of the following does not affect the motion of a
moving electron
A)
Electric field applied in the direction of motion
B)
Magnetic field applied in the direction of
motion
C)
Electric field applied perpendicular to the
direction of motion
D)
Magnetic field applied perpendicular to the
direction of motion
Q7. How does time period (T) of a seconds pendulum vary with
length (L)
A)
T α l1/2
B)
T α l2
C)
T α l
D)
T does not depend on L
Q8. How long does it take light from the sun to reach to
earth(approx.)
A)
2 min
B)
4 min
C)
8 min
D)
9 min
Q9. Which of the following is used to remove astigmatism for
a human eye
A)
Concave lens
B)
Convex lens
C)
Cylindrical lens
D)
Prismatic lens
Q10. When an electric bulb breaks, what is the region for a
mild bang?
A)
A chemical Reaction between the enclosed gases
B)
Compressed gases rushed out suddenly
C)
The air rushes in to fill the evacuated space
D)
None of the above
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other aspirants related to any question.
Answer Key
is updated with Explanation in
comment box on next day of uploding this post.
BCAABAACCB
ReplyDeleteAnswer Key:
ReplyDelete1.B 2.C 3.C 4.A 5.C 6.D 7.D 8.C 9.C 10.C
Explanation of Q9.
ReplyDeleteastigmatism is a refractive error, meaning it is not an eye disease or eye health problem; it's simply a problem with how the eye focuses light.
In an eye with astigmatism, light fails to come to a single focus on the retina to produce clear vision. Instead, multiple focus points occur, either in front of the retina or behind it (or both).
In addition to the spherical lens power used to correct nearsightedness or farsightedness, astigmatism requires an additional "cylinder" lens power to correct the difference between the powers of the two principal meridians of the eye.
What is fiddle luminous zone... Can anyone explain it?
ReplyDelete