Physics question and answers for July 13, 2024
- Q 9 The count rate for a radioactive source was found to be 1600 count sec At t 0 and t 8 sec this rate was 100 count sec What was...
- Q If the frequency and intensity of a light source are both 2 doubled Now consider the following statements A The saturation photocurrent remains almost the same B the maximum kinetic...
- Q An electrical technician requires a capacitance of 4 F in a circuit across a potential difference of 1000 V A large number of 2 F capacitors are available to him...
- Q 3 3 3 F 4 5 F In fig given C 3 F C SuF C 9 F and 13 C 13uF What is the potential difference between points A...
- Q 8 With a certain cell the balance point is obtained at 65 cm from the zero 1 point end of a potentiometer wire With another cell whose e m f...
- Q A lump of lead with mass 0 5 kg is dropped from height of 20 m onto a hard surface it doesn t rebound but remains there at rest for...
- Q vector of the object is A 31 4 12k B 3i 4j 12k C 31 4j 12k A particle goes along a quadrant of a circle of radius 10m from...
- Q The velocity time graph for a body is shown in the figure Answer the following a calculate the acceleration during the time interval 4s to 8s b find the distance...
- Q The wooden beam is constructed from three boards that are fastened together using nails with s spacing along the beam as s For b 12 in h 5 in and...
- Q A block of mass m is placed in a container as shown Height of the block is very close to the height of the container A time dependent force F...
- Q Calculate the self gravitational potential energy of matter forming a a thin uniform shell of mass M and radius R and b a uniform sphere of mass M and radius...
- Q Anuncharged capacitor of capacitance 10 uF and a coil of inductance 2 mH are placed in series with a battery of emf 60 V The switch is closed Then the...
- Q A block of mass 6 kg kept on a horizontal smooth surface is act B 16kg ya horizontal force of 48N Find the magnitude and direction of acceleration of the...
- Q In the figure 8 kg and 6 kg are hanging stationary from a rough pulley and are about to move They are stationary due to roughness of the pulley Which...
- Q For the combination of one prism and 2 lenses shown Find the size in cm of final image when the object whose length is 1 cm is located as shown...
- Q calculate the force acting on the body if its mass is 10 kg A force of 2 N gives a mass m an acceleration of 5 m s2 and a...
- Q Variation of force with time for a body moving along straight line is shown in figure The impulse in N s imparted in the time interval t 0 to t...
- Q 33 From the top of a tower T a ball is thrown vertically upwards When the ball reaches h below T its speed is double of what it was at...
- Q In single slit diffraction experiment first minima of rec light A 660 nm coincides with first maxima of other wavelength X What is the value of O 440 nm 470...
- Q 5 A circular coil of mean radius of 7 cm and having 4000 turns is rotated at the rate of 1800 revolutions per minute in the earth s magnetic field...
- Q 8 37 A bird is sitting in a wire cage hanging from the spring balance Let the reading of the spring balance be W If the bird flies about inside...
- Q F pushes wedge of mass M on a smooth horizontal surface A block of mass m is stationary relative to the wedge then F mF M m D The reaction...
- Q A micro ammeter has a resistance of 10002 and 42 full scale range of 50 A It can be used as a voltmeter or as a higher range ammeter provided...
- Q Find the electric potential of the four charges at the center of the square with q 1 0 x 10 6 C and a 1 m as shown in the...
- Q direction Mass of block A is 4 kg and that of B is 6 kg a Draw the FBD of each block b Find the contact force between the blocks...
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