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Q. No.
| 1. | \(E_K=E\) | 2. | \({\Large\frac{E_K}{E}}=K\) |
| 3. | \({\Large\frac{E_K}{E}}={\large\frac{1}{K}}\) | 4. | \({\Large\frac{E_K}{E}}=\sqrt K\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo charges \(q,\) \(-q\) are placed at the two ends of the hypotenuse of an isosceles right-angled triangle, the smaller sides being of length, \(a.\) A dipole of dipole moment \(p\) is placed at the right-angled vertex with its axis pointing towards the positive charge, \(q.\) The torque acting on the dipole is:
1. \(\dfrac{kpq}{a^2}\)
2. zero
3. \(\dfrac{2kpq}{a^2}\)
4. \(\dfrac{\sqrt{5}kpq}{a^2}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(W_1=W_2\)
2. \(2W_1 =W_2\)
3. \(W_1 = 2W_2\)
4. \(4W_1 = W_2\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology• \(A \left ( 1, 0, 0 \right )\) \(V_{A}=2\) volt
• \(B \left ( 0, 2, 0 \right )\) \(V_{B}=4\) volt
• \(C \left ( 0, 0, 2 \right )\) \(V_{C}=6\) volt
• \(D \left ( 1, 1, 0 \right )\) \(V_{D}=-1\) volt
The component of the electric field along the \(x\text-\)axis is:
1. \(2\) V/m
2. \(8\) V/m
3. \(3\) V/m
4. \(-6\) V/m
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology\(\left(\text{take}~ k=\dfrac{1}{4\pi\varepsilon_0}\right) \)
| 1. | \(\dfrac{kq}{L}\) | 2. | less than \(\dfrac{kq}{L}\) |
| 3. | greater than \(\dfrac{kq}{L}\) | 4. | zero |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
| 1. | \(\dfrac{4\pi\varepsilon_0r^2}{d}\) | 2. | \(\dfrac{2\pi\varepsilon_0r^2}{d}\) |
| 3. | \(\dfrac{\pi\varepsilon_0r^2}{d}\) | 4. | \(\dfrac{\pi\varepsilon_0r^2}{2d}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(10\) V
2. \(5 \sqrt 2\) V
3. \(10 \sqrt 2\) V
4. \(10 (\sqrt {2} -1)\) V
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
Then, \(V_{A}-V_{B}=\)
1. \(E_0\)
2. \(2E_0\)
3. \(-E_0\)
4. zero
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe capacitance of the unknown capacitor is:
1. \(4 ~\mu \text{F}\)
2. \(6~ \mu \text{F}\)
3. \(24 ~\mu \text{F}\)
4. \(36 ~\mu \text{F}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn electron (charge: \(e\) & mass: \(m\)) emitted from the positive plate \(A\) of the capacitor \(AB\), just manages to reach the negative plate \(B\). If the potential difference between the plates is \(V_0\), then the speed of the electron when it is emitted is:
| 1. | \(\sqrt{\frac{e V_{0}}{m}} \quad\) | 2. | \(\sqrt{\frac{e V_{0}}{2 m}} \quad\) |
| 3. | \(\sqrt{\frac{2 e V_{0}}{m}}\) | 4. | \(\sqrt{\frac{2 e V_{0} d}{m}}\) |
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