1
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
A current of 2.5 A flows through a coil of inductance 5 H. The magnetic flux linked with the coil is
A
0.5 Wb
B
12.5 Wb
C
zero
D
2 Wb
2
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
An electromagnetic wave of frequency $$\upsilon = 3.0$$ MHz passes from vaccum into a dielectric medium with relative permittivity $${{\varepsilon _r}}$$ = 4.0. Then
A
Wavelength is doubled and frequency becomes half.
B
Wavelength is halved and frequency remains unchanged.
C
Wavelength and frequency both remain unchanged.
D
Wavelength is doubled and frequency unchanged.
3
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
In Young's double slit experiment the distance between the slits and the screen is doubled. The separation between the slits is reduced to half. As a result the fringe width
A
is halved
B
becomes four times
C
remains unchanged
D
is doubled
4
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
A parallel beam of light of wavelength $$\lambda $$ is incident normally on a narrow slit. A diffraction pattern formed on a screen placed perpenficular to the direction of the incident beam. At the second minimum of the diffraction pattern, the phase difference between the rays coming from the two edges of slit is
A
2$$\pi $$
B
3$$\pi $$
C
4$$\pi $$
D
$$\pi $$$$\lambda $$
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