101 Specific resistance of a wire____________________? Physics Medium Full question → A will depend on its length B will depend on its radius C will depend on the type of material of the wire D will depend on none of the above
102 There are three bulbs of 60W 100W and 200W which bulb has thickest filament ? Physics Medium Full question → A 100W B 200W C 60W D all
103 Circuit which gives continuously varying potential is called _______________________? Physics Medium Full question → A complex network B wheat stone bridge C potential divider D all of above
104 Reciprocal of resistivity is called__________________? Physics Medium Full question → A resistance B inductance C conductivity D flexibility
105 Resistance of an ideal insulator is __________________? Physics Medium Full question → A infinite B zero C finite D depends upon nature
106 An immersion heater of 400 watts kept on for 5 hours will consume electrical power of __________________? Physics Medium Full question → A 2KWh B 20KWh C 6KWh D 12KWh
107 Thermocouples convert___________________? Physics Medium Full question → A heat energy into electrical energy B heat energy into light energy C heat energy into mechanical energy D mechanical energy into heat energy
108 Three equal resistors connected in series with a source of e m f together dissipate 10 W of power each. What will be the power dissipated if the same resistors are connected in parallel across the same source of e m f ? Physics Medium Full question → A 40 W B 90W C 100W D 120W
109 Production of heat due to an electric current flowing through a conductor is given by _________________? Physics Medium Full question → A Joule effect B Joule Thomsons effect C Comptons effect D Feed back effect
110 A wire having very high value of conductance is said to be____________________? Physics Medium Full question → A very good conductor B moderately good conductor C an insulator D no specific criterion available
111 The current through a metallic conductor is due to the motion of _________________? Physics Medium Full question → A free electrons B protons C neutrons D still under controversy
112 Fundamental frequency of stationary waves in open pipe is ______________ times the frequency in closed pipe? Physics Medium Full question → A One B Two C Four time D None of these
113 The beats frequency (sensible) for a human car is _____________________? Physics Medium Full question → A 42Hz B 7 Hz C 256Hz D 262Hz
114 Laplace found that the alternate compressions and rarefactions produced in sound waves follows ________________? Physics Medium Full question → A isothermal law B adiabatic law C isochoric law D all of the above
115 Waves produced at the surface of water by a pencil executing vibrating motion if held vertically at a frequency of 50Hz are__________________? Physics Medium Full question → A Longitudinal B Transverse C Periodic D both A and C
116 The dimension of elastic modulus is ___________________ ? Physics Medium Full question → A ML-1T-2 B ML-2T-2 C MLT-2 D ML2T-2
117 In open organ pipe___________________? Physics Medium Full question → A only even harmonics are present B only odd harmonics are present C both even and odd harmonics are present D selected harmonics are present
118 A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency ? Physics Medium Full question → A 1/4f B 1/2f C frequency lower than 20 Hz D 2f
119 Doppler effect applies to____________________? Physics Medium Full question → A sound wave only B light wave only C both sound and light waves D neither sound nor light wave
120 Beats are the results of____________________? Physics Medium Full question → A diffraction of sound waves B constructive and destructive interference C polarization D destructive interference