1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
In a region, the potential is represented by V(x, y, z) = 6x $$-$$ 8xy $$-$$ 8y + 6yz,   where $$V$$ is in volts and x, y, z are in metres. The electric force experienced by a charge of 2 coulomb situated at point (1, 1, 1) is
A
$$6\sqrt 5 $$ N
B
30 N
C
24 N
D
$$4\sqrt {35} $$ N
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2 A on the first surface returns back through the same path after suffering reflection at the silvered surface.

The refractive index $$\mu $$, of the prism is
A
2sinA
B
2cosA
C
$${1 \over 2}$$cosA
D
tanA
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
A beam of light of $$\lambda = 600$$ nm from a distant source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen 2 m away. The distance between first dark fringes on either side of the central bright fringe is
A
1.2 cm
B
1.2 mm
C
2.4 cm
D
2.4 mm
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
If the focal length of objective lens is increased then magnifying power of
A
microscope will increase but that of telescope decrease.
B
microscope and telescope both will increase.
C
microscope and telescope both will decrease.
D
microscope will decrease but that of telescope will increase.
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