Physics question and answers for September 04, 2024
- Q screen in case of D In Young s double slit experiment the distance between the slits and the screen is doubled The separation between the slits is reduced to half...
- Q 18 Four point charges A B C and D are placed at the four corners of a square of side a The energy required to take the charges C and...
- Q An inductor 20 10 3 henry a capacitor 100 F and a resistor 500 are connected in series across a source of EMF V 10 sin 314t If resistance is...
- Q Q 16 A current of 2 5 0 05 A flows through a wire and develops a potential difference of 10 0 1 volt Resistance of the wire in ohm...
- Q P A parallel beam of fast moving electrons is incident normally on a narrow slit A fluorescent screen is placed at a large distance from the slit If the speed...
- Q 9 A billiards player hits a stationary ball by an identical ball to pocket the target ball in a comer pocket that is at an angle of 40 with respect...
- Q A hollow conducting sphere is placed in an electric field produced by a point charge placed at point A as shown in the figure Let VB and Vc be the...
- Q View in English A potentiometer consists of a wire of length 8 m and resistance 20 Q It is connected to a cell of e m f 4 V The...
- Q 29 Two points P and Q are maintained at potential of 8 V and 7 V respectively The work done in moving 105 electrons from P to Q is 1...
- Q If yellow light emitted by sodium lamp in Young s double slit experiment is replaced by a monochromatic blue light of the same intensity a fringe width will decrease b...
- Q Q 2 Two batteries one of the emf 3V internal resistance 1 ohm and the other of emf 15 V internal resistance 2 ohm are connected in series with a...
- Q In Young s double slit experiment the fringe width is found to be 0 4 mm If the whole apparatus is immersed in water of refrative index 4 39 without...
- Q 7 A lens having focal length fand aperture of diameter d forms an image of intensity I Aperture d of diameter in central region of 2 lens is covered by...
- Q A A dielectric slab of thickness d 2 and dielectric constant 2 is inserted in capacitor as shown in figure If capacitor is connected to 10 V emf battery then...
- Q An electron is moving in a circular orbit of radius r makes N rotations per second The magnetic field produced at the centre has a magnitude O HoNe 2r O...
- Q The electric field in a region of space is E 1 4 3k kN C The electric flux due to this field over an area i 1 m is 1...
- Q A stone of mass m falls from the top of a tower of height 150 m The stone s position y measured down from the top of the tower where...
- Q Q 11 In the circuit shown the resistances are given in ohms and the battery is assumed ideal with emf equal to 3 0 volts The resistor that dissipates the...
- Q An object is kept on a smooth inclined plane of inclination 0 The horizontal acceleration to be imparted to the inclined plane so that the object is stationary relative to...
- Q Q 17 If X Y and Z in figure are identical lamps which of the following changes to the brightnesses of the lamps occur when switch S is closed O...
- Q of A is twice that of B Under such conditions the density of A is found to be 1 5 times th Two vessels separately contain two ideal gases A...
- Q Two cells of emf E and E2 are joined in series and the balancing length of potentiometer wire 550 cm If the terminal of E is reversed the balance length...
- Q There are two metallic spheres of same radii but one is solid and other is hollow Then 1 Solid sphere can be given more charge 2 Hollow sphere can be...
- Q 7 The electric potential in a region is represented as V 2x 3y z Obtain expression for electric field strength A 21 3j k C 2i 3 k B 21...
- Q Ratio of intensities of two waves are given by 4 1 Then the ratio of the amplitudes of the two waves is 1991 a 2 1 c 4 1 124...
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