Question

The equation   is

(a) b -emission

(b) a -emission

(c) ecapture

(d) Fission

Answer

(a) b -emission

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

The capacitance is measured in:

Capacitance (in F) of a spherical conductor with radius 1m is

(a) 1.1  

(b)  

(c) 9 ×  

(d)  

Twelve wires of equal length and same cross-section are connected in the form of a cube. If the resistance of each of the wires is  R, then the effective resistance between the two diagonal ends would be

(a) 2 R

(b) 12 R

(c)  

(d) 8 R

Which of the following gives the value of magnetic field according to,  Biot-Savart’s law’

(a)

(b)

(c)

(d)

When does a magnetic dipole possess maximum potential energy inside a magnetic field?

The combination of the gates shown in the figure below produces

(a) NOR gate

(b) OR gate

(c) AND gate

(d) XOR gate

Assertion  :   Lenz’s law violates the principle of conservation of energy.

Reason      : Induced e.m.f., opposes always the change in magnetic flux responsible for its production.

(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 assertion is false but reason is true.

Five resistors of given values are connected together as shown in the figure. The current in the arm BD will be

(a) Half the current in the arm ABC

(b) Zero

(c) Twice the current in the arm ABC

(d) Four times the current in the arm ABC

The half life of  is 8 days. Given a sample of  at time t = 0, we can assert that

(a) No nucleus will decay before t = 4 days

(b) No nucleus will decay before t = 8 days

(c) All nuclei will decay before t = 16 days

(d) A given nucleus may decay at any time after t = 0

The percentage of mass lost during nuclear fusion is: