Physics questions
20027 published questions with worked solutions.
- In a vernier callipers, 50 vernier scale divisions are equal to 48 main scale divisions. If one main scale division = 0.05 mm,...
- Five persons P1, P2, P3, P4 and P5 recorded object distance (u) and image distance (v) using same convex lens having power +5 D...
- When a light of a given wavelength falls on a metallic surface the stopping potential for photoelectrons is 3.2 V. If a second...
- The fifth harmonic of a closed organ pipe is found to be in unison with the first harmonic of an open pipe. The ratio of lengths...
- The binding energy for the following nuclear reactions are expressed in MeV. _2He^3+_0n^1 _2He^4+20 MeV _2He^4+_0n^1 _2He^5-0.9...
- A cubical block of density _b=600 kg/m³ floats in a liquid of density _e=900 kg/m³. If the height of block is H=8.0 cm then...
- A moving coil galvanometer of resistance 100 shows a full scale deflection for a current of 1 mA. The value of resistance...
- In the Young's double slit experiment the intensity produced by each one of the individual slits is I_0. The distance between two...
- Distance between an object and three times magnified real image is 40 cm. The focal length of the mirror used is _____ cm.
- When 300 J of heat given to an ideal gas with C_p= 7 2 R its temperature raises from 20°C to 50°C keeping its volume constant....
- In a meter bridge experiment to determine the value of unknown resistance, first the resistances 2 and 3 are connected in the...
- A soap bubble of surface tension 0.04 N/m is blown to a diameter of 7 cm. If (15000-x) J of work is done in blowing it further to...
- 10 kg of ice at -10°C is added to 100 kg of water to lower its temperature from 25°C. Consider no heat exchange to surroundings....
- Water drops fall from a tap on the floor, 5 m below, at regular intervals of time, the first drop strikes the floor when the...
- An atom ^8_3X is bombarded by shower of fundamental particles and in 10 s this atom absorbed 10 electrons, 10 protons and 9...
- The electric field of an electromagnetic wave travelling through a medium is given by E (x,t) = 25 (2.0 10^ 15 t - 10^7x) n then...
- For the two cells having same EMF E and internal resistance r, the current passing through the external resistor 6 is same when...
- Two wires A and B made of different materials of length 6.0 cm and 5.4 cm, respectively and area of cross sections 3.0 10^ -5 m^2...
- A block of mass 5 kg is moving on an inclined plane which makes an angle of 30° with the horizontal. Friction coefficient between...
- Given below are two statements : Statement-I : A plane wave after passing through prism remains as plane wave but passing through...