Out of the following options which one can be used to produce a propagating electromagnetic wave?
| 1. | a stationary charge. |
| 2. | a chargeless particle. |
| 3. | an accelerating charge. |
| 4. | a charge moving at constant velocity. |
Subtopic: Generation of EM Waves |
90%
Level 1: 80%+
NEET - 2016
Hints
Links
The charge flowing through a resistance \(R\) varies with time \(t\) as \(Q=at-bt^2,\) where \(a\) and \(b\) are positive constants. The total heat produced in \(R\) is:
| 1. | \(\dfrac{a^3R}{3b}\) | 2. | \(\dfrac{a^3R}{2b}\) |
| 3. | \(\dfrac{a^3R}{b}\) | 4. | \(\dfrac{a^3R}{6b}\) |
Subtopic: Heating Effects of Current |
55%
Level 3: 35%-60%
NEET - 2016
Hints
Links
At what height from the surface of the earth, are the gravitation potential and the value of \(g\) are: \(-5.4 \times 10^7~\text{J/kg}^{-2}\) and \(6.0~\text{ms}^{-2}\) respectively?
(Take, the radius of the earth as \(6400~\text{km}\))
(Take, the radius of the earth as \(6400~\text{km}\))
1. \(1600~\text{km}\)
2. \(1400~\text{km}\)
3. \(2000~\text{km}\)
4. \(2600~\text{km}\)
2. \(1400~\text{km}\)
3. \(2000~\text{km}\)
4. \(2600~\text{km}\)
Subtopic: Gravitational Potential |
67%
Level 2: 60%+
NEET - 2016
Hints
Links
The coefficient of linear expansion of brass and steel rods are \(\alpha_1\) and \(\alpha_2\). Lengths of brass and steel rods are \(L_1\) and \(L_2\) respectively. If \((L_2-L_1)\) remains the same at all temperatures, which one of the following relations holds good?
| 1. | \(\alpha_1L_2^2=\alpha_2L_1^2\) | 2. | \(\alpha_1^2L_2=\alpha_2^2L_1\) |
| 3. | \(\alpha_1L_1=\alpha_2L_2\) | 4. | \(\alpha_1L_2=\alpha_2L_1\) |
Subtopic: Thermal Expansion |
89%
Level 1: 80%+
NEET - 2016
Hints
Links
The intensity at the maximum in Young's double-slit experiment is \(I_0\). The distance between the two slits is \(d= 5\lambda\), where \(\lambda \) is the wavelength of light used in the experiment. What will be the intensity in front of one of the slits on the screen placed at a distance \(D = 10 d\)?
| 1. | \(\dfrac{I_0}{4}\) | 2. | \(\dfrac{3}{4}I_0\) |
| 3. | \(\dfrac{I_0}{2}\) | 4. | \(I_0\) |
Subtopic: Young's Double Slit Experiment |
58%
Level 3: 35%-60%
NEET - 2016
Hints
Given that the value of the Rydberg constant is \(10^{7}~\text{m}^{-1},\) what will be the wave number of the last line of the Balmer series in the hydrogen spectrum?
1. \(0.5 \times 10^{7}~\text{m}^{-1}\)
2. \(0.25 \times 10^{7} ~\text{m}^{-1}\)
3. \(2.5 \times 10^{7}~\text{m}^{-1}\)
4. \(0.025 \times 10^{4} ~\text{m}^{-1}\)
1. \(0.5 \times 10^{7}~\text{m}^{-1}\)
2. \(0.25 \times 10^{7} ~\text{m}^{-1}\)
3. \(2.5 \times 10^{7}~\text{m}^{-1}\)
4. \(0.025 \times 10^{4} ~\text{m}^{-1}\)
Subtopic: Spectral Series |
88%
Level 1: 80%+
NEET - 2016
Hints
Links
The ratio of escape velocity at the Earth \((v_e)\) to the escape velocity at a planet \((v_p)\) whose radius and mean density are twice that of the Earth is:
1. \(1:2\sqrt{2}\)
2. \(1:4\)
3. \(1:\sqrt{2}\)
4. \(1:2\)
1. \(1:2\sqrt{2}\)
2. \(1:4\)
3. \(1:\sqrt{2}\)
4. \(1:2\)
Subtopic: Escape velocity |
73%
Level 2: 60%+
NEET - 2016
Hints
Links
A long solenoid has \(1000\) turns. When a current of \(4~\text{A}\) flows through it, the magnetic flux linked with each turn of the solenoid is \(4\times 10^{-3}~\text{Wb}\). The self-inductance of the solenoid is:
1. \(3~\text{H}\)
2. \(2~\text{H}\)
3. \(1~\text{H}\)
4. \(4~\text{H}\)
Subtopic: Self - Inductance |
89%
Level 1: 80%+
NEET - 2016
Hints
Links
A car is negotiating a curved road of radius \(R\). The road is banked at an angle \(\theta\). The coefficient of friction between the tyre of the car and the road is \(\mu_s\). The maximum safe velocity on this road is:
| 1. | \(\sqrt{\operatorname{gR}\left(\dfrac{\mu_{\mathrm{s}}+\tan \theta}{1-\mu_{\mathrm{s}} \tan \theta}\right)}\) | 2. | \(\sqrt{\frac{\mathrm{g}}{\mathrm{R}}\left(\dfrac{\mu_{\mathrm{s}}+\tan \theta}{1-\mu_{\mathrm{s}} \tan \theta}\right)}\) |
| 3. | \(\sqrt{\frac{\mathrm{g}}{\mathrm{R}^2}\left(\dfrac{\mu_{\mathrm{s}}+\tan \theta}{1-\mu_{\operatorname{s}} \tan \theta}\right)}\) | 4. | \(\sqrt{\mathrm{gR}^2\left(\dfrac{\mu_{\mathrm{s}}+\tan \theta}{1-\mu_{\mathrm{s}} \tan \theta}\right)}\) |
Subtopic: Banking of Roads |
88%
Level 1: 80%+
NEET - 2016
Hints
Links
The magnetic susceptibility is negative for:
| 1. | paramagnetic material only. |
| 2. | ferromagnetic material only. |
| 3. | paramagnetic and ferromagnetic materials. |
| 4. | diamagnetic material only. |
Subtopic: Magnetic Materials |
89%
Level 1: 80%+
NEET - 2016
Hints
Links
© 2026 GoodEd Technologies Pvt. Ltd.