CBSE Class 12 Science Physics Free Doubts and Solutions
CBSE - XII Science - Physics
A dumbbell consists of two masses A and B each of mass m joined by a light rod of length l with mass B attached to a suspension point O by a light rod of length l as shown in figure. Find the minimum required speed with which mass A to be projected horizontally so that the system completes the vertical circular motion.
CBSE - XII Science - Physics
Differentiate if A, ω and k are constant. I don't understand this question , how -k is coming on differentiation of (ωt-kx), so please elaborate this step in detail so that I can understand 😔🙏
CBSE - XII Science - Physics
what is pseudo force ?
CBSE - XII Science - Physics
In question 16, I have found net magnetic field to be ûJR, but the answer is option c
CBSE - XII Science - Physics - Electromagnetic Induction
in which situation there is displacement current but no conduction current
CBSE - XII Science - Physics
Can I crack SRMJEE and VITEEE without JEE preparation? Please send me answers. I am really very stressed about it.
CBSE - XII Science - Physics
describe the ways in which eddy currents are used to advantage
Browse free questions and answers Chapters
- 1 Electric Charges and Fields
- 2 Electrostatic Potential and Capacitance
- 3 Current Electricity
- 4 Moving Charges and Magnetism
- 5 Magnetism and Matter
- 6 Electromagnetic Induction
- 7 Alternating Current
- 8 Electromagnetic Waves
- 9 Ray Optics and Optical Instruments
- 10 Wave Optics
- 11 Dual Nature of Radiation and Matter
- 12 Atoms
- 13 Nuclei
- 14 Semiconductor Electronics
- 15 Communication Systems