2 3. 4. 5. The speed of red light in glass A is faster than in glass B. Which of the following is/are TRUE? A. The index of refraction of B is higher than A. B. The speed of light in A is lower than in the air. C. The frequency of the red light is the same in both glasses. Which of the following statement is/are TRUE about the polarization of waves? A. Sound waves can exhibit a polarization effect. B. Polarization is an orientation of an oscillation. C. Radiowave cannot be polarized because it is invisible. Which of the following optical phenomena causes the change in the wavelength of a wave? A. Reflection B. Refraction Diffraction C. Unpolarised light of intensity, I, passes through three polarisers as shown in FIGURE 2. The second and third polarizers are rotated at angles 0₁ and 8₂ relative to the vertical line. ₂ is set to 80°. What is/are the possible values of 0₁ and 1₂? 0₁ 8₂ = 80° Innolarised I 1₂
Refraction of Light
Refraction is a change in the direction of light rays when they travel from one medium to another. It is the bending of light when it goes through different media.
Angle of Refraction
Light is considered by many scientists to have dual nature, both particle nature and wave nature. First, Particle nature is one in which we consider a stream of packets of energy called photons. Second, Wave nature is considering light as electromagnetic radiation whereas part of it is perceived by humans. Visible spectrum defined by humans lies in a range of 400 to 700 nm wavelengths.
Index of Refraction of Diamond
Diamond, the world’s hardest naturally occurring material and mineral known, is a solid form of the element carbon. The atoms are arranged in a crystal structure called diamond cubic. They exist in a huge variety of colours. Also, they are one of the best conductors of heat and have a very high melting point.
![2
3.
4.
5.
6.
The speed of red light in glass A is faster than in glass B.
Which of the following is/are TRUE?
A. The index of refraction of B is higher than A.
B. The speed of light in A is lower than in the air.
C. The frequency of the red light is the same in both glasses.
Which of the following statement is/are TRUE about the polarization of waves?
A. Sound waves can exhibit a polarization effect.
B. Polarization is an orientation of an oscillation.
C. Radiowave cannot be polarized because it is invisible.
Which of the following optical phenomena causes the change in the wavelength of a
wave?
A.
B.
C.
Reflection
Refraction
Diffraction
Unpolarised light of intensity, I, passes through three polarisers as shown in
FIGURE 2. The second and third polarizers are rotated at angles 0₁ and 0₂ relative to
the vertical line. 0₂ is set to 80°. What is/are the possible values of 8₁ and 1₂?
0₂= 80°
A.
B.
C.
Unpolarised, lo
A.
B.
0₁
0⁰
45°
60⁰
Positive lens
Diverging lens
Convex mirror
FIGURE 2
0₁
Which of the following optical elements always produce a virtual image?
1₂
0.0151
0.341,
0.831,
1₂](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3ad01f60-4219-492f-ba73-b52c85c2a06b%2F17218324-2b00-45c3-81d5-2b505082cd6e%2Fu2i4q4h_processed.png&w=3840&q=75)
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