Name of the Board : Central Board of Secondary Education (CBSE)
Class : XII STD
Document Type : Sample Question Paper
Subject : Physics
Term : 1 and 2
Year : 2021-22
Website : https://cbseacademic.nic.in/SQP_CLASSXII_2021-22.html
CBSE XII Physics Question Paper
CBSE Students can download the Physics Sample Question Paper Term 1 and 2 for the year 2021-22 from the website of CBSE Academic.
Related / Similar Question Paper : CBSE Academic Class XII Political Science Sample Question Paper 2021-22
Sample Question Paper For CBSE XII Physics
Section-A :
Q1.Which of the following is NOT the property of equipotential surface?
(i) They do not cross each other.
(ii) The rate of change of potential with distance on them is zero.
(iii) For a uniform electric field they are concentric spheres.
(iv) They can be imaginary spheres.
Q2. Two point charges +8q and -2q are located at x=0 and x=L respectively. The point on x axis at which net electric field is zero due to these charges is-
(i) 8L
(ii) 4L
(iii) 2 L
(iv) L
Q3. An electric dipole of moment p is placed parallel to the uniform electric field. The amount of work done in rotating the dipole by 900 is-
(i) 2pE
(ii) pE
(iii) pE/2
(iv) Zero
Q4. Three capacitors 2μF, 3μF and 6μF are joined in series with each other. The equivalent capacitance is-
(i) 1/2μF
(ii) 1μF
(iii) 2μF
(iv) 11μF
Q5. Two point charges placed in a medium of dielectric constant 5 are at a distance r between them, experience an electrostatic force ‘F’. The electrostatic force between them in vacuum at the same distance r will be-
(i) 5F
(ii) F
(iii) F/2
(iv) F/5
Q6. Which statement is true for Gauss law-
(i) All the charges whether inside or outside the gaussian surface contribute to the electric flux.
(ii) Electric flux depends upon the geometry of the gaussian surface.
(iii) Gauss theorem can be applied to non-uniform electric field.
(iv) The electric field over the gaussian surface remains continuous and uniform at every point.
Q7.A capacitor plates are charged by a battery with ‘V’ volts. After charging battery is disconnected and a dielectric slab with dielectric constant ‘K’ is inserted between its plates, the potential across the plates of a capacitor will become
(i) Zero
(ii) V/2
(iii) V/K
(iv) KV
Q8.The best instrument for accurate measurement of EMF of a cell is-
(i) Potentiometer
(ii) metre bridge
(iii) Voltmeter
(iv) ammeter and voltmeter
Q9.An electric current is passed through a circuit containing two wires of same material, connected in parallel. If the lengths and radii of the wires are in the ratio of 3:2 and 2:3, then the ratio of the current passing through the wire will be
(i) 2:3
(ii) 3:2
(iii) 8:27
(iv) 27:8
Q10.By increasing the temperature, the specific resistance of a conductor and a semiconductor-
(i) increases for both.
(ii) decreases for both.
(iii) increases for a conductor and decreases for a semiconductor.
(iv) decreases for a conductor and increases for a semiconductor.
Q11.We use alloys for making standard resistors because they have
(i) low temperature coefficient of resistivity and high specific resistance
(ii) high temperature coefficient of resistivity and low specific resistance
(iii) low temperature coefficient of resistivity and low specific resistance
(iv) high temperature coefficient of resistivity and high specific resistance
Q12. A constant voltage is applied between the two ends of a uniform metallic wire, heat ‘H’ is developed in it. If another wire of the same material, double the radius and twice the length as compared to original wire is used then the heat developed in it will be-
(i) H/2
(ii) H
(iii) 2H
(iv) 4H
Q13.If the potential difference V applied across a conductor is increased to 2V with its temperature kept constant, free electrons in a conductor
(i) remain the same
(ii) become half of its previous value
(iii) be double of its initial value
(iv) become zero.
Q14.The equivalent resistance
(i) 3 ohms
(ii) 5.5 ohms
(iii) 7.5 ohms
(iv) 9.5 ohms
Q15. The SI unit of magnetic field intensity is
(i) AmN-1
(ii) NA-1m-1
(iii) NA-2m-2
(iv) NA-1m-2
Q16.The coil of a moving coil galvanometer is wound over a metal frame in order to
(i) reduce hysteresis
(ii) increase sensitivity
(iii) increase moment of inertia
(iv) provide electromagnetic damping
Q17.Two wires of the same length are shaped into a square of side ‘a’ and a circle with radius ‘r’. If they carry same current, the ratio of their magnetic moment is
(i) 2 : π
(ii) π : 2
(iii) π : 4
(iv) 4 : π
Q18. The horizontal component of earth’s magnetic field at a place is √3 times the vertical component. The angle of dip at that place is
(i) π/6
(ii) π/3
(iii) π/4
(iv) 0
Q19. The small angle between magnetic axis and geographic axis at a place is-
(i) Magnetic meridian
(ii) Geographic meridian
(iii) Magnetic inclination
(iv) Magnetic Declination
Q20.Two coils are placed close to each other. The mutual inductance of the pair of coils depends upon the
(i) rate at which current change in the two coils
(ii) relative position and orientation of the coils
(iii) rate at which voltage induced across two coils
(iv) currents in the two coils
Download CBSE XII Physics Question Paper
Download CBSE XII Physics Term 1 Question Paper Here :
https://www.pdfquestion.in/uploads/pdf2022/40455-Term1.pdf
Download CBSE XII Physics Term 2 Question Paper Here :
https://www.pdfquestion.in/uploads/pdf2022/40455-Term2.pdf