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Q. No.Given below are two statements:
Statement I:
Image formation needs regular reflection and/or refraction.
Statement II:
The variety in colour of objects we see around us is due to the constituent colours of the light incident on them.
1.
Statement I is correct but Statement II is incorrect.
2.
Statement I is incorrect but Statement II is correct.
3.
Both Statement I and Statement II are correct.
4.
Both Statement I and Statement II are incorrect.
Subtopic: Reflection at Plane Surface |
64%
Level 2: 60%+
NEET - 2024
Hints
The 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. | \(\left(\dfrac{5}{2}\right)\times 10^{-8}~\text{s}\) |
Subtopic: Refraction at Plane Surface |
74%
Level 2: 60%+
NEET - 2024
Hints
The graph that shows the correct variation of \(\dfrac{1}{v}\) with \(\dfrac{1}{u}\) 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 |
53%
Level 3: 35%-60%
NEET - 2024
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For a prism, when the light undergoes minimum deviation, the relationship between the angle of incidence \((i)\) and the angle of emergence \((i')\) is:
| 1. | \(i=i'\) | 2. | \(i>i'\) |
| 3. | \(i<i'\) | 4. | \(i=0\) |
Subtopic: Prisms |
83%
Level 1: 80%+
NEET - 2024
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A small telescope has an objective of focal length \(140~\text{cm}\) and an eyepiece of focal length \(5.0~\text{cm}.\) The magnifying power of the 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 |
76%
Level 2: 60%+
NEET - 2024
Hints
A light ray enters through a right-angled prism at point \(P\) with the angle of incidence \(30^\circ\) as shown in the 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. | \({\dfrac{\sqrt5}{4}}\) |
Subtopic: Prisms |
Level 3: 35%-60%
NEET - 2024
Hints
A microscope has an objective of focal length \(2~\text{cm},\) eyepiece of focal length \(4~\text{cm}\) and the tube length of \(40~\text{cm}.\) If the distance of distinct vision of eye is \(25~\text{cm},\) the magnification in the microscope is:
1. \(150\)
2. \(250\)
3. \(100\)
4. \(125\)
1. \(150\)
2. \(250\)
3. \(100\)
4. \(125\)
Subtopic: Simple & Compound Microscope |
Level 3: 35%-60%
NEET - 2025
Please attempt this question first.
Hints
Please attempt this question first.
In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination and the total magnification in comparison to the power \(( p )\) and magnification \(( m )\) for each lens will be, respectively -
1. \(4 p\) and \(m^4\)
2. \(p^4\) and \(m^4\)
3. \(4 p\) and \(4 m\)
4. \(p^4\) and \(4 m\)
1. \(4 p\) and \(m^4\)
2. \(p^4\) and \(m^4\)
3. \(4 p\) and \(4 m\)
4. \(p^4\) and \(4 m\)
Subtopic: Lenses |
54%
Level 3: 35%-60%
NEET - 2025
Please attempt this question first.
Hints
Please attempt this question first.
An object is mounted on a wall. Its image of equal size is to be obtained on a parallel wall with the help of a convex lens placed between these walls. The lens is kept at distance \(x\) in front of the second wall. The required focal length of the lens will be:
| 1. | less than \(\dfrac x4\) |
| 2. | more than \(\dfrac x4\) but less than \(\dfrac x2\) |
| 3. | \(\dfrac x2\) |
| 4. | \(\dfrac x4\) |
Subtopic: Refraction at Curved Surface |
65%
Level 2: 60%+
NEET - 2023
Hints
Which set of colours would be observed in the air under the conditions depicted in the figure?
| 1. | yellow, orange, and red | 2. | blue, green, and yellow |
| 3. | orange, red, and violet | 4. | all of the above |
Subtopic: Total Internal Reflection |
76%
Level 2: 60%+
NEET - 2023
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