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.
In the light of the above statements, choose the most appropriate answer from the options given below:
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 |
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NEET - 2024
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A uniform metal wire of length \(l\) has \(10~\Omega \) resistance. Now this wire is stretched to a length \(2l\) and then bent to form a perfect circle. The equivalent resistance across any arbitrary diameter of that circle is:
| 1. | \(10~\Omega \) | 2. | \(5~\Omega \) |
| 3. | \(40~\Omega \) | 4. | \(20~\Omega \) |
Subtopic: Current & Current Density |
From NCERT
NEET - 2024
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The spectral series which corresponds to the electronic transition from the levels \(\mathrm{n}_{2}=5,6,\ldots \) to the level \(\mathrm{n}_{1}=4\mathrm~\) is:
| 1. | Pfund series |
| 2. | Brackett series |
| 3. | Lyman series |
| 4. | Balmer series |
Subtopic: Spectral Series |
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From NCERT
NEET - 2024
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Given below are two statements: One is labeled as Assertion (A) and the other is labeled as Reason (R).
In the light of the above statements, choose the correct answer from the options given below:
| Assertion (A): |
Houses made of concrete roofs overlaid with foam keep the room hotter during |
| Reason (R): |
The layer of foam insulation prohibits heat transfer, as it contains air pockets. |
In the light of the above statements, choose the correct answer from the options given below:
| 1. | (A) is True but (R) is False. |
| 2. | (A) is False but (R) is True. |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | Both (A) and (R) are True and (R) is the correct explanation of (R). |
Subtopic: Conduction |
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From NCERT
NEET - 2024
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A particle executing simple harmonic motion with amplitude \(A\) has the same potential and kinetic energies at the displacement:
| 1. | \(2\sqrt{A}\) | 2. | \(\dfrac{A}{2}\) |
| 3. | \(\dfrac{\mathrm{A}}{\sqrt{2}}\) | 4. | \(A\sqrt{2}\) |
Subtopic: Energy of SHM |
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From NCERT
NEET - 2024
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Two slits in Young's double slit experiment are \(1.5~\text{mm}\) apart and the screen is placed at a distance of \(1 ~\text m\) from the slits. If the wavelength of light used is \(600\times10^{-9}~\text {m}\) then the fringe separation is:
1. \(4\times10^{-5}~\text m\)
2. \(9\times10^{-8}~\text m\)
3. \(4\times10^{-7}~\text m\)
4. \(4\times10^{-4}~\text m\)
1. \(4\times10^{-5}~\text m\)
2. \(9\times10^{-8}~\text m\)
3. \(4\times10^{-7}~\text m\)
4. \(4\times10^{-4}~\text m\)
Subtopic: Young's Double Slit Experiment |
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From NCERT
NEET - 2024
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Water is used as a coolant in a nuclear reactor because of its:
1. high thermal expansion coefficient
2. high specific heat capacity
3. low density
4. low boiling point
1. high thermal expansion coefficient
2. high specific heat capacity
3. low density
4. low boiling point
Subtopic: Nuclear Binding Energy |
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From NCERT
NEET - 2024
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The pitch of an error-free screw gauge is \(1~\text{mm},\) and there are \(100\) divisions on the circular scale. While measuring the diameter of a thick wire, the pitch scale reads \(1~\text{mm},\) and \(63^\text{rd}\) division on the circular scale coincides with the reference line. The diameter of the wire is:
1. \(1.63 ~\text{cm}\)
2. \(0.163 ~\text{cm}\)
3. \(0.163~\text m\)
4. \(1.63 ~\text m\)
1. \(1.63 ~\text{cm}\)
2. \(0.163 ~\text{cm}\)
3. \(0.163~\text m\)
4. \(1.63 ~\text m\)
Subtopic: Measurement & Measuring Devices |
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From NCERT
NEET - 2024
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The following data is for a reaction between reactants A and B:
The order of the reaction with respect to A and B, respectively are:
1. 1, 0
2. 0, 1
3. 1, 2
4. 2, 1
| Rate mol \(L^{-1}s^{-1}\) |
[A] | [B] |
| \(2 \times10^{-3}\) | 0.1 M | 0.1 M |
| \(4 \times10^{-3}\) | 0.2 M | 0.1 M |
| \(1.6 \times10^{-2}\) | 0.2 M | 0.2 M |
The order of the reaction with respect to A and B, respectively are:
1. 1, 0
2. 0, 1
3. 1, 2
4. 2, 1
Subtopic: Order, Molecularity and Mechanism |
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From NCERT
NEET - 2024
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Let us consider two solenoids \(A\) and \(B,\) made from the same magnetic material of relative permeability \(\mu_{r}\) and equal area of cross-section. Length of \(A\) is twice that of \(B\) and the number of turns per unit length in \(A\) is half that of \(B.\) The ratio of self inductances of the two solenoids, \(L_A:L_B\) is:
1. \(1:2\)
2. \(2:1\)
3. \(8:1\)
4. \(1:8\)
1. \(1:2\)
2. \(2:1\)
3. \(8:1\)
4. \(1:8\)
Subtopic: Self - Inductance |
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NEET - 2024
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