MCQ
In scattering experiment, $\alpha$-particles scattered due to which force :
  • A
    Nuclear force
  • Coulomb's force
  • C
    (a) and (b)
  • D
    Gravitational force

Answer

Correct option: B.
Coulomb's force
(B) - Coulomb's force

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

State the rule that is used to find the direction of field acting at a point near a current-carrying straight conductor.

The equivalent quantity of mass in electricity is

(a)  Charge

(b) Potential

(c)  Inductance

(d) Current  

A ray of light is incident at 50° on the middle of one of the two mirrors arranged at an angle of 60° between them. The ray then touches the second mirror, get reflected back to the first mirror, making an angle of incidence of

(a) 50°

(b) 60°

(c) 70°

(d) 80°

The resistance of a wire is   per metre. It is bend in the form of a circle of diameter 2 m. A wire of the same material is connected across its diameter. The total resistance across its diameter AB will be

(a)  

(b)  

(c) 0.88  

(d) 14π 

In series L - C - R circuit voltage drop across resistance is 8V, across inductor is 6V and across capacitor is 12V. Then.
When an impurity is doped into an intrinsic semiconductor, the conductivity of the semiconductor:

A person cannot see objects clearly beyond 2.0 m. The power of lens required to correct his vision will be

(a) + 2.0 D

(b) – 1.0 D

(c) + 1.0 D

(d) – 0.5 D

Assertion  :  A current I flows along the length of an infinitely long straight and thin walled pipe. Then the magnetic field at any point inside the pipe is zero.

Reason      :   

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c) If assertion is true but reason is false.

(d) If the assertion and reason both are false.

A current i passes through a wire of length l, radius of cross-section r and resistivity r. The rate of heat generation is

(a)  

(b)

(c)

(d) ilρ/r

The photo-electrons emitted from a surface of sodium metal are such that        

(a) They all are of the same frequency

(b) They have the same kinetic energy

(c) They have the same de Broglie wavelength

(d) They have their speeds varying from zero to a certain maximum