Q1PhysicsUnit 16: Optics
For a total internal reflection, which of
the following is correct?
Physics · JEE
Total internal reflection and its applications, magnification, power of a lens, combination of thin lenses in contact Short Tricks for JEE
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Syllabus context
Part of Optics in JEE Main Physics.
- Reflection of light, spherical mirrors, mirror formula
- Refraction of light at plane and spherical surfaces, thin lens formula and lens maker formula
- Total internal reflection and its applications, magnification, power of a lens, combination of thin lenses in contact
- Refraction of light through a prism, microscope and astronomical telescope (reflecting and refracting) and their magnifying powers
- Wave optics: wavefront and Huygens' Principle, laws of reflection and refraction using Huygens principle
- Interference: Young's double-slit experiment and expression for fringe width, coherent sources and sustained interference of light
- Diffraction due to a single slit, width of central maximum
- Polarization: plane-polarized light, Brewster's law, uses of plane-polarized light and Polaroid
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Q2PhysicsUnit 16: Optics
Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or
sunset?
Q3PhysicsUnit 16: Optics
When light is incident on the interface of glass and air as shown in the figure, the green light is just totally internally reflected. Then the emerging ray in air contains:
Q4PhysicsUnit 16: Optics
A magnifying glass is used to read the newspaper. As it is moved far away from
the newspaper
Q5PhysicsUnit 16: Optics
The figure shows a mixture of blue,
green and red colour ray incident on the right angled prism. The critical angles
of the material of prism for red, green
and blue colours are and
respectively. The arrangement will
separate:
Q6PhysicsUnit 16: Optics
One can not see through fog because:
Q7PhysicsUnit 16: Optics
The power of a lens is negative. State
whether it is convex or concave?
Q8PhysicsUnit 16: Optics
A focal length of a lens is What is power of a lens in dioptre?
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