Physics question and answers for September 06, 2024
- Q A uniform disc of radius R and mass m lies on a smooth horizontal plane A ring of mass 2m and radius R 2 spinning with angular velocity wo is...
- Q The two coils of self inductance 4 H and 4 H are wound on the same iron core The coefficient of mutual inducta for them may be 4 H 10...
- Q The magnetic susceptibility of a substance at room temperature is 0 0002 The susceptibility when the temperature increased by 2 C will be 0 0001 0 0002 0 0002 0...
- Q A bar magnet and a wooden bar identical in dimension and mass are released from same height to fall under gra passing through multiple rings of conducting material Time taken...
- Q During fusion reaction the device in which magnetic field is used to confine the plasma is called 1 Breeder reactor 2 Moderator 3 Tokamak 4 Geiger Nuttal counter
- Q 20 A wall has two layers A and B each made of different materials Both the layers have the same thickness The thermal conductivity of the material of A is...
- Q Question No The coercivity for a certain permanent magnet is 4 0 x 104 A m This magnet is placed inside a long solenoid of 40 turns cm and a...
- Q D 1101924461 NOTE SCREENSHOT PROHIBITED A B C monitoring and recording by usi D ID 1101924461 barcode ID 1101924461 Active RF ID ID 1101924461 Passive RF ID ID 1101924461
- Q A steel wire of cross sectional area 0 5 mm is held between two fixed supports If the wire is just taut at 20 C determine the tension in N...
- Q 35 In the given circuit switch is clos After a long time the iron rod is withdrawn from the inductor L Then the bulb Iron Rod 70000 L tham S...
- Q A body performs S H M due to force F with time period 0 8 s If force is changed to F it executes S H M with time period...
- Q 1101924461 NOTE SCREENSHOT PR ID 1101924461 3 C D software as a service ID 1101924461 service as a software ID 1101924461 service as a service ID 1101924461
- Q Figure shows a smooth horizontal table in x y plane between two identical fixed walls Two identical springs are connected to the small ball The length of the springs in...
- Q Question No 19 There are two circular coils of equal areas and equal magnetic flux through them The resistances of the colls are in the ratio 1 2 If the...
- Q 56 The wavelength of radiation emitted when an electron jumps from the third to second orbit of hydrogen atom is The wavelength of radiation emitted for the electron jumps from...
- Q 2 An electron is 2000 times lighter than a proton Both are moving such that their matter waves have a length of 1 The ratio of their kinetic energy in...
- Q A tunnel is dug along a chord of earth having length 3R where R is radius of Earth A small block is released in the tunnel from the surface of...
- Q 28 In a Young s double slit experiment sources of equal intensities are used Distance between slits is d and wavelength of light used is 2 2 d Angular separation...
- Q An electromagnetic wave of intensity 30 W m2 is incident on a surface of area 2 m If the surface is per absorbing then the amount of momentum transferred to...
- Q t A thin ring of radius R metre has charge q coulomb uniformly spread on it The ring rotates about its axis with a constant frequency f revolution s The...
- Q 7 If E is the amount of energy released radioactive element having mass number A undergoes alpha decay then the velocity of alpha particle is 1 3 2Q VA 4...
- Q 27 In the following common emitter circuit if 100 VCE 7V VBE Negligible R 2 ko then I Ra ww B Rc E A 0 01 mA B 0 04...
- Q The net charge in a current carrying wire is zero still magnetic field exerts a force on it because a magnetic field exerts force on 1 Stationary charge 2 Moving...
- Q 1 An electron having kinetic energy ko collides with a hydrogen atom in the ground state This collision will be elastic if 1 3 4 eV k 10 2 eV...
- Q Zero Marks In all othe 300 identical galvanic cells each of internal resistance 90 are arranged as several in series groups of cells connected in parallel The arrangement has been...
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