Bihar Board Physics Model Paper Answer Key 2021- Bihar Board 12th/Inter Physics Model Question Paper Answer Key 2021
Bihar Board 12th/Inter Physics Model Question Paper Answer Key 2021; Bihar Board has released the model question paper of Bihar Board Inter Annual Exam 2021. In this post we have shared the answer key and solution of Bihar Board Physics Model Paper 2021.
Those students who are going to appear in Bihar Board Inter Annual Exam 2021 can download the Model Paper from the official website or from this page also. Students can download the solution and answer key of Bihar Board Physics Model Paper 2021 from this post. Below we shared the solution and answer of Bihar Board Physics Model Paper 2021.
Bihar Board Inter Physics Model Question Paper Answer Key 2021- Overview
|Name of Board||Bihar School Examination Board|
|Name of Article||Bihar Board Inter Physics Model Question Paper Answer Key 2021|
|Solution/Answer Key Status||To be released|
Bihar Board 12th/Inter Physics Model Question Paper Answer Key 2021
The official solution and answer key of MCQ Objective question of Bihar Board Inter Physics Model Paper 2021 has been released. The answer key of Bihar Board Inter Physics Model Paper 2021 has been given below. Candidates can download the Bihar Board Inter Physics Model Paper 2021 from this page.
Bihar Board Inter Physics Model Paper Solution & Answer 2021
Ques 1. Electric field near a charged plane conductor is?
Ans- (A) E=σ/ϵ0.
Ques 2. Which of the following relation between electric field (E) and electric potential (V) is correct ?
Ans- (A) E=−dv/dr
Ques 3. Electrical capacity of spherical conductor of radius 9 km is
Ans- (A) 1 μF
Ques 4. Capacitance of parallel plate capacitor is
Ans- (A) ϵ0ϵrA/d
Ques 5. Which of the following relation between ‘G’ the resistance of galvanometer and ‘V’, the resistance of voltmeter is correct ?
Ques 6. Which of the following is the applied form of wheatstone bridge ?
Ans- (C) Metre Bridge
Ques. 7. The specific resistance of a wire depends upon its
Ans- (D) Nature of Material
Ques. 8. Which of the following physical quantity is conserved in Kirchoff’s point-rule ?
Ans- (B) Charge
Ques. 9. Motion of electron inside a conductor is
Ans- (C) uniform average /Drifting
Ques. 10. Power of electric circuit is –
Ans- (c) V2/R
Ques. 11. Which of the following is correct for force on moving charge in a magnetic field ?
Ans- (B) F = q (V x B)
Ques. 12. The unit of magnetic flux is ?
Ans- (C) tesla
Ques. 13. Power factor of a circuit having resistance only is –
Ans- (B) Zero
Ques. 14. Root mean square value of alternating current is equal to
Ans- (C) Peak current/√2
Ques. 15. Which of the following is the correct relation between geometric length (Lg) and magnetic length (Lm) of a magnet ?
Ans- (B) Lg =5/6 Lm
Ques. 16. Which of the following is correct for earth’s magnetic field, if BH horizontal component of earth magnetic field and d is angle of dip.
Ques. 17. The unit of intensity of magnetisation is
Ques. 18. Magnetic meridian is
Ques. 19. The magnifying power of simple micriscope in normal adjustment
Ques. 20. The focal-length of a normal eye-lens is about
Ques. 21. Critical angle for diamond is –
Ques. 22. The equivalent lens of two convex lenses in contact is
Ques. 23. The basic principle of optical fibre is
Ques. 24. The least distance for clear vision for normal eye is
Ques. 25. Which of the following phenomena of light is correct for the
formation of rainbow?
Ques. 26. The refractive index of glass is more for which colour of light ?
Ques. 27. The Path difference for destructive interferenc is
Ques. 28. Which of the following phenomena confirms the transverse wave
nature of light ?
Ques. 29. Bending of light from the corners of an obstacle is called –
Ques. 30. Work-function of silver is
Ques. 31. The value of planck constant is
Ques. 32. Dynamic Mass of photon is
Ques. 33. Which of the following series is in ultraviolet region ?
Ques. 34. Which of the following is not applicable for radioactivity ?
Ques. 35. Fast moving electrons are
Ques. 36. a-particle is –
Ques. 37. The relation among ragne of transmitting antenna (d), height of T.V.
transmssion tower (h) and radius of earth (R) is –
Ques. 38. Energy of hydrogen atom in the ground state is
Ques. 39. When an impurity is doped into an intrinsic semiconductor its
Ques. 40. The Boolean expression for NOR gate is
Ques. 41. Which of the following is the correct output frequency for input
frequency of 50Hz in half wave rectification ?
Ques. 42. Which of the following is the decimal number of binary number
Ques. 43. Charge on an electron is
Ques. 44.Î0 is equal to.