1
COMEDK 2024 Morning Shift
+1
-0

In the Young's double slit experiment $$n^{\text {th }}$$ bright for red coincides with $$(n+1)^{\text {th }}$$ bright for violet. Then the value of '$$n$$' is: (given: wave length of red light $$=6300^{\circ} \mathrm{A}$$ and wave length of violet $$=4200^{\circ} \mathrm{A}$$).

A
2
B
4
C
3
D
1
2
COMEDK 2024 Morning Shift
+1
-0

When light wave passes from a medium of refractive index '$$\mu$$' to another medium of refractive index '$$2 \mu$$' the phase change occurs to the light is :

A
180$$^\circ$$
B
90$$^\circ$$
C
60$$^\circ$$
D
zero
3
COMEDK 2024 Morning Shift
+1
-0

The width of the fringes obtained in the Young's double slit experiment is $$2.6 \mathrm{~mm}$$ when light of wave length $$6000^{\circ} \mathrm{A}$$ is used. If the whole apparatus is immersed in a liquid of refractive index 1.3 the new fringe width will be :

A
2.6 mm
B
5.2 mm
C
2 mm
D
4 mm
4
COMEDK 2024 Morning Shift
+1
-0

In a single slit diffraction experiment, for slit width '$$\alpha$$' the width of the central maxima is '$$\beta$$'. If we double the slit width then the corresponding width of the central maxima will be:

A
$$4 \beta$$
B
$$\beta$$
C
$$\frac{\beta}{2}$$
D
$$2 \beta$$
EXAM MAP
Medical
NEET