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ISC Physics Class 11 Question Paper. We covered all the ISC Physics Class 11 Question Paper in this post for free so that you can practice well for the exam.
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- Previous Year Question Paper of Physics Class 11 HBSE
- Class 11 Physics Important Questions with Answers in Hindi
- Comprehensive Physics Class 11
ISC Physics Class 11 mcqs for Students
Two Capacitors with values 4 μF and 1 μF are connected in series across a 200 V DC supply. What is the ratio of the potential difference across the 1 μF Capacitor to that across the 4 μF Capacitor?
a) 2 : 1
b) 4 : 1
c) 8 : 1
d) 16 : 1
Option b – 4 : 1
A parallel-plate Capacitor has a capacitance of 50 μF in air. When it is completely immersed in oil, its capacitance becomes 110 μF. Determine the dielectric constant of the oil.
a) 0.45
b) 0.55
c) 1.1
d) 2.2
Option d – 2.2
An 8 μF Capacitor is charged to 200 V using a battery. After disconnecting the battery, the plates are joined by a conducting wire. How much Heat is generated in the process?
a) 16 J
b) 1.6 J
c) 0.08 J
d) 0.16 J
Option d – 0.16 J
Two Capacitors of 4 μF and 2 μF are each charged to 500 V but with opposite polarities. When the switches are closed, what is the ratio of the final energy to the initial energy of the system?
a) 1 : 9
b) 4 : 9
c) 1 : 1
d) 2 : 1
Option c – 1 : 1
The energy density around a charged conductor in free space is 1 J. If the conductor is placed in a medium having dielectric constant 2, what will be the new energy density?
a) 0.5 J
b) 1 J
c) 2 J
d) 4 J
Option c – 2 J
The Electric Field intensity just outside the surface of a charged conductor is E₁. The Electric Field due to an infinite uniformly charged thin plane sheet is E₂. Which relation between E₁ and E₂ is correct?
a) 2E₁ = E₂
b) E₁ = E₂
c) E₁ = 2E₂
d) E₁ = 4E₂
Option c – E₁ = 2E₂
A 20 μF Capacitor charged to 500 V is connected in parallel with another 10 μF Capacitor charged to 200 V. What will be the final common potential after connection?
a) 200 V
b) 300 V
c) 400 V
d) 500 V
Option c – 400 V
When a dielectric material is inserted between the plates of a Capacitor, how do the capacitance, potential difference, and stored energy change respectively?
a) increases, decreases, decreases
b) decreases, increases, increases
c) increases, increases, increases
d) decreases, decreases, decreases
Option a – increases, decreases, decreases
Several identical Capacitors are connected in parallel and charged to a potential V. They are then disconnected and reconnected in series. How do the total energy and potential difference of the new arrangement change?
a) both remain the same
b) energy remains the same and the potential difference becomes nV
c) energy increases n times and the potential difference becomes nV
d) energy increases n times while the potential difference remains unchanged
Option b – energy remains the same and the potential difference becomes nV
A thin aluminum sheet is placed between the plates of a parallel-plate Capacitor without touching either plate. How does the capacitance vary with the position of the sheet?
a) it remains the same for all positions
b) it is maximum when the sheet is at the center
c) it is maximum when the sheet is close to the positive plate
d) it is maximum when the sheet is close to the negative plate
Option a – it remains the same for all positions
Eight identical mercury droplets, each having the same radius and charge, merge to form a single larger droplet. How does the capacitance of the larger droplet compare with that of one smaller droplet?
a) 8 times
b) 4 times
c) 16 times
d) 2 times
Option d – 2 times
Two identical Capacitors are first connected in series and then in parallel. The difference between their effective capacitances in the two cases is 6 μF. What is the capacitance of each Capacitor?
a) 2 μF
b) 4 μF
c) 8 μF
d) 16 μF
Option b – 4 μF
There are 27 conducting liquid drops, each of radius r and maintained at a potential V₀. When all the drops combine into a single large drop, what will be its potential?
a) 9V₀
b) 27V₀
c) 3V₀
d) 21V₀
Option a – 9V₀
We covered all the ISC Physics Class 11 question paper above in this post for free so that you can practice well for the exam.
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Also, check out:
- Previous Year Question Paper of Physics Class 11 HBSE
- Class 11 Physics Important Questions with Answers in Hindi
- Comprehensive Physics Class 11
