HSC Science (Electronics) 12th Standard Board Exam - Maharashtra State Board Important Questions

State any two advantages and disadvantages of a photodiode. 

Draw the circuit symbol for NPN and PNP transistors. What is the difference in the Emitter, Base, and Collector regions of a transistor? 

State the law of radioactive decay.

With the help of a neat circuit diagram, explain the working of a photodiode. 

With the help of neat labelled circuit diagram explain the working of half wave rectifier using semiconductor diode. Draw the input and output waveforms.

What are the disadvantages of group tests of intelligence?

Explain the following concept in 25 to 30 words:

Psychological resilience

Write differences.

Rural Community and Urban Community

Write differences.

Caste and Class

Differentiate between:

Language diversity and Regional diversity.

Answer the following question in detail. (About 150 words)

‘The World Wide Web is a source of information and misinformation.’ Discuss this statement with regard to the impact of the internet on:

1. Parents
2. Children
3. School

Write short note.

Characteristics of modernisation

Write a short note.

Characteristics of digitalisation.

Explain the following concept with example.

Modernisation

State whether the following statement is True or False with reason.

Modern industry is based on profit making.

Explain the following concept with examples.

Industrialisation

Correct the incorrect pair and rewrite it.

Write short note.

Causes of social movements

Explain the following concept with example.

Women’s empowerment

Write differences.

Mobile addiction and Drug addiction.