Simple Harmonic Motion — Physics STD 12 Science — Question

Answer the following questions, which help you understand the difference between Thomson’s model and Rutherford’s model better.
In which model is it completely wrong to ignore multiple scattering for the calculation of average angle of scattering of α-particles by a thin foil?

Mark the correct statements:

1. Equations of special relativity are not applicable for small speeds.
2. Equations of special relativity are applicable for all speeds.
3. Nonrelativistic equations give exact result for small speeds.
4. Nonrelativistic equations never give exact result.

What is the condition for maximum sensitivity of Wheatstone bridge?

Define the unit of electric potential.

Which of the two:

1. Light.
2. Moving material particle is concerned with de-Broglie hypothesis?

The length of the string of a simple pendulum is measured with a metre scale to be 90.0cm. The radius of the bob plus the length of the hook is calculated to be 2.13cm using measurements with a slide callipers. What is the effective length of the pendulum? (The effective length is defined as the distance between the point of suspension and the centre of the bob.)

How does the energy gap in a semiconductor vary, when doped with a pentavalent impurity?

Express the speed of transmission of electromagnetic wave in terms of peak values of electric and magnetic fields.

What is the average number of neutrons obtained per nucleus from the fission of uranium nucleus?