Refraction, Law of Refraction Refractive index and Snell's law.
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Ray Optics

282121 The refractive indices of two media are denoted by $n_1$ and $n_2$, and the velocities of light in these two media are respectively $v_1$ and $v_2$. If $n_2 / n_1$ is 1.5, which one of the following statements is correct?

1 $v_1$ is 1.5 times $v_2$
2 $v_2$ is 1.5 times $v_1$
3 $v_1$ is equal to $v_2$
4 $v_2$ is 3 times $v_1$
NDA (II) 2018
Ray Optics

282133 The frequency of a light ray is $6 \times 10^{14} \mathrm{~Hz}$. Its frequency when it propagates in a medium of refractive index 1.5 will be

1 $6 \times 10^{14} \mathrm{~Hz}$
2 $4 \times 10^{14} \mathrm{~Hz}$
3 $9 \times 10^{14} \mathrm{~Hz}$
4 $1.67 \times 10^{14} \mathrm{~Hz}$
CG PET- 2004
Ray Optics

282122 The refractive index of the material of a prism is $\sqrt{2}$ and the angle of the prism is $30^{\circ}$. One of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is

1 $30^{\circ}$
2 $45^{\circ}$
3 $60^{\circ}$
4 zero
NEET- 2018
Ray Optics

282123 The refractive index of glass is 1.5 . The speed of light in glass is

1 $3 \times 10^8 \mathrm{~m} / \mathrm{s}$
2 $2 \times 10^8 \mathrm{~m} / \mathrm{s}$
3 $1 \times 10^8 \mathrm{~m} / \mathrm{s}$
4 $4 \times 10^8 \mathrm{~m} / \mathrm{s}$
JIPMER-2018
For More Updates join with Us
Ray Optics

282121 The refractive indices of two media are denoted by $n_1$ and $n_2$, and the velocities of light in these two media are respectively $v_1$ and $v_2$. If $n_2 / n_1$ is 1.5, which one of the following statements is correct?

1 $v_1$ is 1.5 times $v_2$
2 $v_2$ is 1.5 times $v_1$
3 $v_1$ is equal to $v_2$
4 $v_2$ is 3 times $v_1$
NDA (II) 2018
Ray Optics

282133 The frequency of a light ray is $6 \times 10^{14} \mathrm{~Hz}$. Its frequency when it propagates in a medium of refractive index 1.5 will be

1 $6 \times 10^{14} \mathrm{~Hz}$
2 $4 \times 10^{14} \mathrm{~Hz}$
3 $9 \times 10^{14} \mathrm{~Hz}$
4 $1.67 \times 10^{14} \mathrm{~Hz}$
CG PET- 2004
Ray Optics

282122 The refractive index of the material of a prism is $\sqrt{2}$ and the angle of the prism is $30^{\circ}$. One of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is

1 $30^{\circ}$
2 $45^{\circ}$
3 $60^{\circ}$
4 zero
NEET- 2018
Ray Optics

282123 The refractive index of glass is 1.5 . The speed of light in glass is

1 $3 \times 10^8 \mathrm{~m} / \mathrm{s}$
2 $2 \times 10^8 \mathrm{~m} / \mathrm{s}$
3 $1 \times 10^8 \mathrm{~m} / \mathrm{s}$
4 $4 \times 10^8 \mathrm{~m} / \mathrm{s}$
JIPMER-2018
NEET DIGITAL LIBRARY
Ray Optics

282121 The refractive indices of two media are denoted by $n_1$ and $n_2$, and the velocities of light in these two media are respectively $v_1$ and $v_2$. If $n_2 / n_1$ is 1.5, which one of the following statements is correct?

1 $v_1$ is 1.5 times $v_2$
2 $v_2$ is 1.5 times $v_1$
3 $v_1$ is equal to $v_2$
4 $v_2$ is 3 times $v_1$
NDA (II) 2018
Ray Optics

282133 The frequency of a light ray is $6 \times 10^{14} \mathrm{~Hz}$. Its frequency when it propagates in a medium of refractive index 1.5 will be

1 $6 \times 10^{14} \mathrm{~Hz}$
2 $4 \times 10^{14} \mathrm{~Hz}$
3 $9 \times 10^{14} \mathrm{~Hz}$
4 $1.67 \times 10^{14} \mathrm{~Hz}$
CG PET- 2004
Ray Optics

282122 The refractive index of the material of a prism is $\sqrt{2}$ and the angle of the prism is $30^{\circ}$. One of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is

1 $30^{\circ}$
2 $45^{\circ}$
3 $60^{\circ}$
4 zero
NEET- 2018
Ray Optics

282123 The refractive index of glass is 1.5 . The speed of light in glass is

1 $3 \times 10^8 \mathrm{~m} / \mathrm{s}$
2 $2 \times 10^8 \mathrm{~m} / \mathrm{s}$
3 $1 \times 10^8 \mathrm{~m} / \mathrm{s}$
4 $4 \times 10^8 \mathrm{~m} / \mathrm{s}$
JIPMER-2018
Join With Us for More Updates
Ray Optics

282121 The refractive indices of two media are denoted by $n_1$ and $n_2$, and the velocities of light in these two media are respectively $v_1$ and $v_2$. If $n_2 / n_1$ is 1.5, which one of the following statements is correct?

1 $v_1$ is 1.5 times $v_2$
2 $v_2$ is 1.5 times $v_1$
3 $v_1$ is equal to $v_2$
4 $v_2$ is 3 times $v_1$
NDA (II) 2018
Ray Optics

282133 The frequency of a light ray is $6 \times 10^{14} \mathrm{~Hz}$. Its frequency when it propagates in a medium of refractive index 1.5 will be

1 $6 \times 10^{14} \mathrm{~Hz}$
2 $4 \times 10^{14} \mathrm{~Hz}$
3 $9 \times 10^{14} \mathrm{~Hz}$
4 $1.67 \times 10^{14} \mathrm{~Hz}$
CG PET- 2004
Ray Optics

282122 The refractive index of the material of a prism is $\sqrt{2}$ and the angle of the prism is $30^{\circ}$. One of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is

1 $30^{\circ}$
2 $45^{\circ}$
3 $60^{\circ}$
4 zero
NEET- 2018
Ray Optics

282123 The refractive index of glass is 1.5 . The speed of light in glass is

1 $3 \times 10^8 \mathrm{~m} / \mathrm{s}$
2 $2 \times 10^8 \mathrm{~m} / \mathrm{s}$
3 $1 \times 10^8 \mathrm{~m} / \mathrm{s}$
4 $4 \times 10^8 \mathrm{~m} / \mathrm{s}$
JIPMER-2018
For More Updates join with Us