Recently Active Optics Questions

What are the conditions for TIR on second surface of prism.It is said that A>2C.what if A=2C.Pls explain ...

While measuring the focal length of combination of two lenses, the image formed by lens 1 behaves as virtual object for lens 2.The final image shud have formed behind lens1 but it is formed in front of lens 2.Pls Explain??? ...

For convex mirrors if incident rays are parallel to principal axis we extend the reflected rays backwards just to get the image.It is illogical as light never travels backwards.Can u pls explain? ...

What is the use of first slit, the one before two slits acting as coherent sources in Young's Double Slit Experiment?? ...

prove with mathematical Rigour that angle of minimum deviation occurs when i1=i2 for a prism of apex angle A ...

Q1)A liquid of ref ind 'n' is filled in a tank.A plane mirror is kept at the bottom of tank.A point like object is at height h from mirror.An observer observes P and img obtained of P from top vertically upward direction.What ...

sir aap baar bar ye explain kar rahe hain ki internal reflection ho jata hai!!!but i have also seen in a lecture on rainbows ALONGWITH T.I.R. refraction too occurs.......n this seems something really weird to me... as the usu ...

If one face of a bi-convex lense with focal length f is silvered , what will be the new focal length ? Also what if the lense was a plano convex lense?? the second part of the qsn was asked in wbjee..which i could not answer. ...

ADDED Q2), Q3) Q1) radius of curved road on national high way is R and width of the road is ' b ' . the outer edge of the road is raised by a height of ' h ' with respect to inner edge so that the car with velocity ' v ' can ...

In a young's double slit exper. , light of wavelength 6000 A° is used to produce fringes of width 0.8 mm at a distance of 2.5 m . If the whole apparatus is dipped in a liquid of refractive index 1.6 the fringe width will be ...

39. A biconvex lens of focal length 15 cm is in front of a plane mirror. The distance between the lens and the mirror is 10 cm. A small object is kept at a distance of 30 cm from the lens. The final image is (A) Virtual and a ...

can someone please post the link to 35th chapter of Resnick Halliday (online version)- nature of light and laws of geometric optics. Thnx in advance ...

A lens is placed between a source of light and wall. It forms images of area a1 and a2 on the wall for two positions. The area of source is A) \frac{\sqrt{a_{1}a_{2}}}{2} B) \frac{a_{1}a_{2}}{a_{1}+a_{2}} C) \sqrt{a_{1}a_{2}} ...

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*Image* .....the angle of the prism is 1/Ï€ ...disscuss the rays coming out of the prism ...

Young's double slit experiment is performed in a liquid. The 10th bright fringe in liquid lies where 6th dark fringe lies in air. The refractive Index of the liquid is approximately, A) 1.2 B) 1.6 C) 1.5 D) 1.8 ...

An object is placed at a distance of 10 cm in air from the front surface of a thick glass slab of thickness 6 cm whose black surface has been silvered.The image is formed at a distance of 14 cm from the polished surface . The ...

Example 9.4 - Suppose while sitting in a parked car, you notice a jogger approaching towards you in the side view mirror of R = 2 m. If the jogger is running at a speed of 5 m s–1, how fast the image of the jogger appear to ...

Monochromatic light of wavelength 400 nm and 560 nm are incident simultaneously and normally on double slits apparatus whose slits separation is 0.1 mm and screen distance is 1m.Distance between areas of total darkness will b ...

*Image* ans is c(how??? please explain how to approach in these type of problems..) ...

*Image* Figure shows a YDSE set-up. The source (0,0) of wavelength 4000 A oscillates along y-axis according the the equation y=sin(pi)t where y is in millimetres and t is in seconds. The distance between two slits S1 and S2 i ...

*Image* In Young's double slit exper., slits are horizontal. The intensity at a point P shown in fig. is 3/4 I0, where I0, is the max. intensity. Then the value of \theta is, (Given the distance between the two slits S1 and S ...

*Image* there is a cylindrical container of depth h. Its bottom is silvered. A point object is fixed at the mouth of the container. Initially the container is filled with water( mu=4/3) . Now the orifice at the bottom is open ...

Its a very easy question. it came in my board xams,so i want to confirm the answer. please help:) *Image* ...

*Image* **vaise this ques doesnt involve TIR ** ...

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Statement: The electric field is responsible for the optical effects of an electromagnetic wave. Justify the above statement. ...

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