Select Question Set:

A light ray enters through a right-angled prism at point \(P\) with the angle of incidence \(30^\circ\) as shown in figure. It travels through the prism parallel to its base \(BC\) and emerges along the face \(AC\). The refractive index of the prism is:

1. \({\dfrac{\sqrt5}{2}}\)

2. \({\dfrac{\sqrt3}{4}}\)

3. \({\dfrac{\sqrt3}{2}}\)

4. \({\dfrac{\sqrt5}{4}}\)

1. \({\dfrac{\sqrt5}{2}}\)

2. \({\dfrac{\sqrt3}{4}}\)

3. \({\dfrac{\sqrt3}{2}}\)

4. \({\dfrac{\sqrt5}{4}}\)

Subtopic: Prisms |

From NCERT

NEET - 2024

Please attempt this question first.

Hints

Please attempt this question first.

A small telescope has an objective of focal length \(140~\text{cm}\) and an eye piece of focal length \(5.0~\text{cm}\) The magnifying power of telescope for viewing a distant object is:

1. \(28\)

2. \(17\)

3. \(32\)

4. \(34\)

1. \(28\)

2. \(17\)

3. \(32\)

4. \(34\)

Subtopic: Telescope |

64%

From NCERT

NEET - 2024

Please attempt this question first.

Hints

Please attempt this question first.

If \(i\) is the angle of incidence and \(i'\) is the angle of emergence on a prism, then the relation between \(i\) and \(i'\) to obtain an angle of minimum deviation is:

1. \(i=i'\)

2. \(i>i'\)

3. \(i<i'\)

4. \(i=0\)

1. \(i=i'\)

2. \(i>i'\)

3. \(i<i'\)

4. \(i=0\)

Subtopic: Prisms |

76%

From NCERT

NEET - 2024

Please attempt this question first.

Hints

Please attempt this question first.

The graph which shows the correct variation of \(\large\frac{1}{v}\) with \(\large\frac{1}{u}\) for a concave mirror, where \(u\) is the object distance and \(v\) is the image distance, is:

1. | 2. | ||

3. | 4. |

Subtopic: Reflection at Spherical Surface |

From NCERT

NEET - 2024

Please attempt this question first.

Hints

Please attempt this question first.

Time taken by sunlight to pass through a glass slab of thickness \(5~\text{mm}\) and refractive index \(1.5\) is:

1. \(\left(\dfrac{5}{3}\right) \times 10^{-8}~\text{s}\)

2. \(\left(\dfrac{5}{2}\right) \times 10^{-11}~\text{s}\)

3. \(\left(\dfrac{5}{3}\right) \times 10^{-11}~\text{s}\)

4. \(\left(\dfrac{5}{2}\right)\times 10^{-8}~\text{s}\)

1. \(\left(\dfrac{5}{3}\right) \times 10^{-8}~\text{s}\)

2. \(\left(\dfrac{5}{2}\right) \times 10^{-11}~\text{s}\)

3. \(\left(\dfrac{5}{3}\right) \times 10^{-11}~\text{s}\)

4. \(\left(\dfrac{5}{2}\right)\times 10^{-8}~\text{s}\)

Subtopic: Refraction at Plane Surface |

69%

From NCERT

NEET - 2024

Please attempt this question first.

Hints

Please attempt this question first.

Light travels a distance \(x\) in time \(t_1\) in air and \(10x\) in time \(t_2\) in another denser medium. What is the critical angle for this medium?

1. \(\sin ^{-1}\left(\dfrac{10 t_1}{t_2}\right) \)

2. \(\sin ^{-1}\left(\dfrac{ t_2}{t_1}\right) \)

3. \(\sin ^{-1}\left(\dfrac{10 t_2}{t_1}\right) \)

4. \(\sin ^{-1}\left(\dfrac{ t_1}{10t_2}\right) \)

1. \(\sin ^{-1}\left(\dfrac{10 t_1}{t_2}\right) \)

2. \(\sin ^{-1}\left(\dfrac{ t_2}{t_1}\right) \)

3. \(\sin ^{-1}\left(\dfrac{10 t_2}{t_1}\right) \)

4. \(\sin ^{-1}\left(\dfrac{ t_1}{10t_2}\right) \)

Subtopic: Total Internal Reflection |

62%

From NCERT

NEET - 2023

Please attempt this question first.

Hints

Please attempt this question first.

In the figure shown here, what is the equivalent focal length of the combination of lenses? (Assume that all layers are thin)

1. \(-50~\text{cm}\)

2. \(40~\text{cm}\)

3. \(-40~\text{cm}\)

4. \(-100~\text{cm}\)

1. \(-50~\text{cm}\)

2. \(40~\text{cm}\)

3. \(-40~\text{cm}\)

4. \(-100~\text{cm}\)

Subtopic: Lens Makers' Formula |

From NCERT

NEET - 2023

Please attempt this question first.

Hints

Please attempt this question first.

Two thin lenses are of the same focal lengths (\(f\)), but one is convex and the other one is concave. When they are placed in contact with each other, the equivalent focal length of the combination will be:

1. infinite

2. zero

3. \(f/4\)

4. \(f/2\)

1. infinite

2. zero

3. \(f/4\)

4. \(f/2\)

Subtopic: Lenses |

57%

From NCERT

NEET - 2023

Please attempt this question first.

Hints

Please attempt this question first.

A lens is made up of \(3\) different transparent media as shown in the figure. A point object \(O\) is placed on its axis beyond \(2f\). How many real images will be obtained on the other side?

1. \(2\)

2. \(1\)

3. No image will be formed

4. \(3\)

1. \(2\)

2. \(1\)

3. No image will be formed

4. \(3\)

Subtopic: Lenses |

60%

From NCERT

NEET - 2023

Please attempt this question first.

Hints

Please attempt this question first.

Select Question Set: