CBSE Class 12 Physics Gravitation Worksheet Set B

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CBSE Class 12 Physics Gravitation Worksheet Set A

CBSE : CLASS-IX SUMMATIVE ASSESSMENT   VERY SHORT ANSWER TYPE QUESTIONS   1. Who gave the Universal law of gravitation   Ans. Issac Newton gave the universal law of gravitation.   2. What do you mean by gravitation ?   Ans. The force of attraction between any two particles…

CBSE Class 12 Physics Wave Optics Worksheet Set A

CBSE Class 12 Physics Wave Optics Worksheet Set A Question. A single slit diffraction pattern is obtained using a beam of red light. If the red light is replaced by the blue light, then the diffraction pattern (a) remains unchanged (b) becomes narrower (c) becomes broader (d…

CBSE Class 12 Physics Semiconductor Electronics Worksheet Set A

Question. The refractive index is greater for a) light of low frequency b) light of shorter wavelength c) lighter of greater wavelength d) All the above Answer. B Question. When a ray is refracted ,which of the following does not change a) frequency b) wavelength c) velocity…

CBSE Class 12 Physics Ray Optics and Optical Instruments Worksheet Set B

CBSE Class 12 Physics Ray Optics and Optical Instruments Worksheet Set B Question. A concave mirror of focal length f produces an image n times the size of object. If image is real, then distance of object from mirror, is (a) (n – 1) f (b) { (n – 1)/n} f (c) { (n + 1)/n} f (d…

CBSE Class 12 Physics Ray Optics and Optical Instruments Worksheet Set A

CBSE Class 12 Physics Ray Optics and Optical Instruments Worksheet Set A Question. What causes chromatic aberration? (a) Non - paraxial rays (b) Paraxial rays (c) Variation of focal length with colour (d) Difference in radii of curvature of the bounding surfaces of the lens…

CBSE Class 12 Physics Nuclei Worksheet

CBSE Class 12 Physics Nuclei Worksheet Set A Question. If 1 mg of U235 is completely annihilated, the energy liberated is (a) 9 × 1010 J (b) 9 × 1019 J (c) 9 × 1018 J (d) 9 × 1017 J Answer: A Question. A heavy nucleus having mass number 200 gets disintegrated into two small…

CBSE Class 12 Physics Moving Charges and Magnetism Worksheet Set B

CBSE Class 12 Physics Moving Charges and Magnetism Worksheet Set B Question. Two charged particles traverse identical helical paths in a completely opposite sense in a uniform magnetic field  B = B0k̂ (a) They have equal z-components of momenta (b) They must have equal…

CBSE Class 12 Physics Moving Charges and Magnetism Worksheet Set A

CBSE Class 12 Physics Moving Charges and Magnetism Worksheet Set A Question. A square loop, carrying a steady current I, is placed in a horizontal plane near a long straight conductor carrying a steady current I1 at a distance d from the conductor as shown in figure. The…

CBSE Class 12 Physics Magnetism and Matter Worksheet Set A

CBSE Class 12 Physics Magnetism and Matter Worksheet Set A Question. When a ferromagnetic material is heated to temperature above its Curie temperature, the material (a) is permanently magnetized (b) remains ferromagnetic (c) behaves like a diamagnetic material (d) behaves…

CBSE Class 12 Physics Electrostatic Potential and Capacitance Worksheet Set B

CBSE Class 12 Physics Electrostatic Potential and Capacitance Worksheet Set B   Question. The four capacitors, each of 25 m F are connected as shown in fig. The dc voltmeter reads 200 V. The charge on each plate of capacitor is (a) ± 2 x 10-3C (b) ± 5 x 10-3C (c) ± 2 x…

CBSE Class 12 Physics Electrostatic Potential and Capacitance Worksheet Set A

CBSE Class 12 Physics Electrostatic Potential and Capacitance Worksheet Set A TWO MARKS QUESTIONS Question. Four point charges 1μC, 1μC, -1μC and -1 μC are placed at corners of a square of each side 0.1 m (i) calculate electric potential at centre O of square (ii) if E is…

CBSE Class 12 Physics Electromagnetic Waves Worksheet

CBSE Class 12 Physics Electromagnetic Waves Worksheet Set A Question. If E and B represent electric and magnetic field vectors of the electromagnetic wave, the direction of propagation of electromagnetic wave is along (a) E (b) B (c) B × E (d) E × B Answer: D Question. In…

CBSE Class 12 Physics Electromagnetic Induction Worksheet Set A

CBSE Class 12 Physics Electromagnetic Induction Worksheet Set A Question. A metal conductor of length 1 m rotates vertically about one of its ends at angular velocity 5 radians per second. If the horizontal component of earth’s magnetic field is 0.2 × 10–4T, then the e.m…

CBSE Class 12 Physics Electric Charges and Fields Worksheet Set B

CBSE Class 12 Physics Electric Charges and Fields Worksheet Set B Question. A cylinder of radius R and length l is placed in a uniform electric field E parallel to the axis of the cylinder. The total flux over the curved surface of the cylinder is (a) zero (b) πR2E (c) 2πR2E…