Wave Optics Test

Directions For Questions

The resolving power of a microscope is its capacity to form distinct images of two very close objects. This power depends upon the wavelength of the light used for illuminating the object and is more for violet light than for the red.
The breakthrough in high-resolution microscopy was made with the advent of quantum mechanics which established the dual nature of wave and matter. Ordinary light, under suitable conditions, could behave like a stream of particles, whereas, with the help of particles moving with high speeds all wave phenomena like diffraction, interference, etc. Could be demonstrated. The relationship between the momentum of the particle and the wavelength of the associated wave is given by the de Broglie's hypothesis, which states that the wavelength is inversely proportional to momentum.

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A microscope is used with sodium light and its resolving power is not sufficiently large.Higher resolution will be obtained by using wavelength of

Wave Optics Tes...

Question 1

20 micron

2 micron

1 micron

400 A$$^{\circ}$$

Question 2

$$1mm$$

$$1cm$$

$$100A^o$$

$$1000A^o$$

Question 3

$$26000A^o$$

$$8866A^o$$

$$5320A^o$$

$$3800A^o$$

Question 4

$$4000 \sqrt3A^o$$

$$\displaystyle\frac{8000}{\sqrt3}A^o$$

$$\displaystyle\frac{5000}{\sqrt3}A^o$$

$$1000 \sqrt3A^o$$

Question 5

$$I_o$$

$$\displaystyle \frac{I_o}{4}$$

$$\displaystyle \frac{I_o}{2}$$

$$4I_o$$

Question 6

reflection of light

polarisation of light

refraction of light

interference of light

Question 7

in same phase

in opposite phase

up and down

left and right

Question 8

$$x=c$$

$$y=c$$

$$z=c$$

$$x+y+z=c$$

Question 9

increase the width of $$S_1$$

decrease the distance between $$S_2$$ and $$S_3$$.

replace $$L$$ with a white light lamp.

make $$S_2$$ and $$S_3$$ wider.

Question 10

the central fringe bright and alternate bright and dark fringes

the central fringe achromatic and coloured fringes for small path difference

the central fringe dark

the central fringe coloured

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