Which type of electromagnetic radiation has the longest wavelength?
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An incident ray strikes a plane mirror at an angle of 20 deg with the mirror. The angle between the incident ray and reflected ray is ____.
American astronaut Scott Joseph Kelly commanded the International Space Station Consecutively for 340 days on ___.
What percentage of India's population is employed in agriculture?
Which Indian PSU has launched the country's first 100 Octane petrol?
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Which of the following devices converts Chemical energy into Electrical energy?
Workers in leather tanning industries tend to suffer from