HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Find the energy of photon which have momentum 2 × 10^-16 gm-cm/sec.  

Draw a neat labelled diagram of a schematic of the experimental setup for the photoelectric effect. 

Explain the concept of the photoelectric effect. 

If the total energy of radiation of frequency 10¹⁴ Hz is 6.63 J, Calculate the number of photons in the radiation. 

State Einstein photoelectric equation. 

With the help of a circuit diagram describing an experiment to study the photoelectric effect.

What is the photoelectric effect? Define stopping potential and photoelectric work function. 

The energy of a photon is 2 eV. Find its frequency and wavelength.  

The work function of a surface is 3.1 eV. A photon of frequency 1 × 10¹⁵ Hz. Is an incident on it. Calculate the incident wavelength is photoelectric emission occurs or not.   

State Einstein’s photoelectric equation. Explain all characteristics of the photoelectric effect, on the basis of Einstein’s photoelectric equation.  

With the help of a circuit diagram describe the experiment to study the characteristics of the photoelectric effect. Hence discuss any 2 characteristics of the photoelectric effect.  

Draw the circuit diagram of a half-wave rectifier. Hence explain its working. 

Draw a neat labelled circuit diagram of a full-wave rectifier using a semiconductor diode.

State the advantages of a full-wave rectifier.  

Draw the block diagram of a simple rectifier circuit with the respective output waveform. 

State the laws of the simple pendulum?

Is it always necessary to use red light to get a photoelectric effect?

Eight droplets of water each of radius 0.2 mm coalesce into a single drop. Find the decrease in the surface area.

Two cells of emf 4 V and 2 V having a respective internal resistance of 1 Ω and 2 Ω are connected in parallel, so as to send current in the same direction through an external resistance of 5 Ω. Find the current through the external resistance.

What is a rectifier?