Question
Consider the following statements: 1.Gallium
arsenide is the only semiconductor compound. 2.India imports semiconductor chips from China, Taiwan, USA and Iran. 3.The India Semiconductor Mission was launched in 2021. How many of the statements given above are correct?Solution
The most used semiconductor materials are silicon, germanium, and gallium arsenide. Data indicates that India imports more than $2.38 billion worth (Rs 19,627 crore) of semiconductor devices from countries like China, Singapore, Hong Kong, Japan, and the United States. The ISM was launched in 2021 with a total financial outlay of Rs76,000 crore under the aegis of the Ministry of Electronics and IT (MeitY).
Which type of mirror is utilized in solar furnaces to focus sunlight and generate heat?
Lambert's law is related to–
S.I unit of Inductance is
Which device uses ultrasonic waves for getting images of internal organs of human body?
Red light is used for signals because it has –
Which of the following dyes is used for colouring Paper and typewriters?
A ship will submerge when it displaces water equal to its
What conditions must be met for stationary waves to form?
The instrument which uses sound waves to measure the depth of oceans is –
Consider the following statements:
1. A flute of smaller length produces waves of lower
2. Sound travels in rocks in the form of longitudi...
