Bihar Board Physics MCQ Answer Key 2021: Bihar Board has organised the Physics Paper Exam of Bihar Board Inter Annual Exam 2021. Bihar Board Physics Paper was conducted at various exam centers all over the state of Bihar. Those candidates who have given the exam of Physics paper of Bihar Board must be searching for Bihar Board Physics MCQ/Objective Answer Key. In this post we have shared the answer key of Bihar Board Physics 42 MCQ Objective answer Key 2021.
Bihar Board Physics Objective Answer Key 2021
Bihar Board Inter/12th Physics Exam 2021 has been ended. Those candidates who have appeared in Bihar Board Inter Physics Paper can check the official answer key from the official website of Bihar Board. The official answer key of Bihar Board Physics Paper will be release after 1 week of exam. However team bsebportal.com has prepared the answer key of MCQ Objective Question that was asked in Bihar Board Physics Inter Exam 2021.
Bihar Board Physics Answer Key 2021- Set Wise
The answer key of both subjective and 42 Objective questions has been given below. The answer key of Bihar Board Physics Exam has been released according to set i.e for Set A,B,C,D,E,F,G,H,I,and J.
Ques 1: – Optical path is equal to
Ans: – Refractive index X Path- Lenght
Ques 2: – Dimension of Planck’s constant is
Ans: – ML2T-1
Ques 3: – The resistance of ammeter is
Ans: – Very Small
Ques4: – Which of the relation is correct for the maginfication power of compound microscope
Ans: – B
Ques5: – Iron is
Ans: – Ferromagnetic
Ques 6: – Which of the following series of hydrogen spectrum is in visible range
Ans: – Balmer
Ques 7: – A hot wire ammeter measures
Ans: – average value of alternating current
Ques 8: – Electron volt is a unit of
Ans: – Energy
Ques 9: – The symbol represents which gate
Ans: – AND
Ques 10: – Dimension of charge is
Ans: – AT
Ques 11: – Which of the relations is correct for radioactive atom?
Ques 12: – Width of interfrence fringe is
Ques 13: – Sum of charges on collecting plate and condensing plate of a charges capacitor is
Ques14: – The binary decimal number of 25 is
Ans: – (1101)2
Ques 15: – Wave length of a Particle of Mass m Moving with Velocity V is
Ans: – h/mv
Ques 16: – The refractive index of diamond is about
Ans: – 2.42
Ques 17: – 1 volt is equal to
Ans: – 1JC-1
Ques 18: – Beta rays are fast moving
Ans: – Photons
Ques19: – On increasing the lenght of tube of compound microscope, magnifying power
Ans: – decreases
Ques 20: – 1 AMU is equal to
Ans: – 1.6 x 10-19 kg
Ques 21:-The relation between geometrical Length of a Mangnet and its Magnetic Length Lm is
Ans- Lm= 5/6Mg
Ques 22:- Unit of F Celon E0 is
Ques 23:- Which of the following is not electromagnetic wave?
Ans- X rays
Ques 24:- On going from north Pole to equator, the value of angle of dip
Ques 25:- The lens which is used to remove short sightedness is
Ques 26:- The velocity of light is maximum in
Ques 27:- Nature of Electromagnetic wave is
Ans- Both Transverse and Logitudinal
Ques 28:- Kilowatt Hour is unit of
Ans- Electric Energy
Ques 29:- The value of red colour in colour code of carbon resistance is
Ques 30:- Which quantity decreases in step-down transformer ?
Ques 31: – Impedance of LR Circuit?
Ques 32:- If ᵑ is the angle of dip at a place, then the expression for tan ᵑ?
Ques 33:- The power of the convex lens of focal length 20 cm in diopter is?
Ques 34:- The least stable nucleus is
Ques 35:- Two capacitors each of capacity C are connected in parallel. The equivalent capacity is
Ques 36: – y —rays are similar to
Ans- Alpha Rays
Ques 37: Density of Nuclues is about ?
Ans- 2.29 x 10-7
Ques 38 : Which of the expression is correct for Lorentz force?
Ques 39: The atomic number decrease with the emission of alpha particle from the nucleus by
Ques 40:- majority carriers in p-type semiconductor
Ques 41:- Cathode rays are
Ques 42:- Which of the following has unit Volt/Metre?
|S.N||Set / Code||Objective Answer||Subjective Answer|