Bissoy.com
Doctors Medicines MCQs Q&A

A polarized light of Intensity 40 Wm2 is incident on the analyzer at a certain angle. If the transmitted beam has an Intensity of 20 Wm2, the angle made with the vertical is _____________

A polarized light of Intensity 40 Wm2 is incident on the analyzer at a certain angle. If the transmitted beam has an Intensity of 20 Wm2, the angle made with the vertical is _____________ Correct Answer 45°

Here, Io = 40 Wm-2, I = 20 Wm-2 Using Malus law, I = Iocos2θ 20 = 40 X cos2θ cos2θ = 1⁄2 θ = 45°.

Related Questions

A polarized light of Intensity 35 Wm2 is incident on the analyzer at a certain angle. If the transmitted beam has an Intensity of 30 Wm2, the angle made with the vertical is __________
An electromagnetic beam has an intensity 28 W/m2 and is linearly polarized vertically. What is the intensity of the transmitted beam, if the angle of incidence on the polaroid is 45o with the vertical?
An electromagnetic beam has an intensity 16 W/m2 and is linearly polarized vertically. What is the intensity of the transmitted beam, if the angle of incidence on the polaroid is 45° with the vertical?
A left circularly polarized light beam of wavelength 600 nm is incident on a crystal of thickness d and propagates perpendicular to its optic axis. The ordinary and extraordinary refractive indices of the crystal are no = 1.54 and ne and = 1.55 respectively. The emergent light will be right circularly polarized, if d is
Consider the following statements with regards to the shear force diagram for the beam ABCD: 1. The beam ABCD is an overhanging beam having supports at A and D only. 2. The beam carries a point load of 20 kN at C. 3. The beam carries a concentrated load of 10 kN at the end B. 4. The beam is an overhanging beam having supports at C and D only. 5. The beam carries a uniformly distributed load of 70 kN over the left hand portion AC only. Which of the above statements are correct?
A beam of light is incident on a rotating prism. If the intensity of the light changes from a maximum to a minimum (not zero), what is the nature of the incident beam?
What angle should the beam made with the vertical, so that after passing through the analyzer, it’s intensity should become 0.86 times the initial intensity?
Consider the following statements regarding types of supports and beams: 1. When both supports of beams are roller supports, the beam is known as simply supported beam. 2. A beam with one end fixed and the other end free is known as fixed beam. 3. A beam with both ends fixed is known as cantilever beam. 4. A beam with one end fixed and the other simply supported is known as propped cantilever. Which of the above statements is/are correct ?
A lexical analyzer uses the following patterns to recognize three tokens T1, T2, and T3 over the alphabet {a,b,c}. ?1: ?? (?|?)∗? ?2: ?? (?|?)∗? ?3: ?? (?|?)∗? Note that ‘x?’ means 0 or 1 occurrence of the symbol x. Note also that the analyzer outputs the token that matches the longest possible prefix. If the string ???????? is processed by the analyzer, which one of the following is the sequence of tokens it outputs?
Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.
The human eye is a complex part of the body that is used for seeing. Eyes enable people to perform daily tasks and to learn about the world that surrounds them. Sight, or vision, is a rapidly occurring process that involves continuous interaction between the eye, the nervous system, and the brain. When someone looks at an object, what he really sees is the light reflected from the object. This reflected light passes through the lens and falls on the retina of the eye. Here the light induces nerve impulses that travel through the optic nerve to the brain and then over other nerves to muscles and glands.
The eye is similar to a television camera. Both the eye and the television camera convert light energy to electrical energy. The eye converts light to nerve impulses that are interpreted by the brain as the sense perception called sight. A television camera converts light to electronic signals that are broadcast and transformed into light images in a television receiver. It is wonderful that human eyes blink an average of once every six seconds. This washes the eye with the salty secretion from the tear or lachrymal glands. Each tear gland is about the size and shape of an almond. These glands are situated behind the upper eyelid at the outer corner of the eye. After passing over the eye, the liquid from the gland is drained into the nose through the tear duct at the inner corner of the eye. The sense perception that the brain releases after the eye converts light to nerve impulses is known as