1
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
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
A thin semicircular conducting ring (PQR) of radius r is falling with its plane vertical in a horizontal magnetic field B, as shown in the figure.

AIPMT 2014 Physics - Electromagnetic Induction Question 25 English
The potential difference developed across the ring when its speed is $$v$$, is
A
zero
B
$${{Bv\pi {r^2}} \over 2}$$ and P is at higher potential
C
$$\pi rBV$$ and R is at higher potential
D
2rBV and R is at higher potential
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
In the Young's double slit experiment, the intensity of light at a point on the screen where the path difference $$\lambda $$ is K, ($$\lambda $$ being the wavelength of light used). The intensity at a point where the path difference is $$\lambda $$/4 will be
A
K
B
K/4
C
K/2
D
zero
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
Hydrogen atom in ground state is excited by a monochromatic radiation of $$\lambda $$ = 975 $$\mathop A\limits^ \circ $$. Number of spectral lines in the resulting spectrum emitted will be
A
3
B
2
C
6
D
0 10