1
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following statements is correct about the magnification of an optical microscope?
A
Magnification increases with the increase in focal length of eyepiece.
B
Magnification increases with the increase in focal length of objective.
C
Magnification does not depend upon the focal length of eyepiece.
D
Magnification decreases with the increase in focal length of eyepiece.
2
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Colour vision in human eyes is the function of photoreceptor cells named
A
rods
B
cones
C
blind spot
D
fovea
3
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
The radii of curvature of the faces of a double convex lens are 10 cm and 20 cm. The refractive index of the glass is 1.5. What is the power of this lens?
A
+ 7.5 D
B
$$-$$ 7.5 D
C
+ 2.5 D
D
+ 5.0 D
4
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
The time period of a simple pendulum made by using a thin copper wire of length L is T. Suppose the temperature of the room in which this simple pendulum is placed increases by 30$$^\circ$$C. What will be the effect on the time period of the pendulum?
A
T will increase slightly
B
T will remain the same
C
T will decrease slightly
D
T will become more than 2 times
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12