Mist is fog with horizontal visibility of

What is fog ?

Write a note on Secondary Rainbow OR Explain the formation of a secondary rainbow. For which angular range with the horizontal is it visible.

Electromagnetic waves with wavelength lambda_1 used in statellite communication. lambda_2 used to kill germs in water purifies. lambda_3 is used to detect leakage of oil in underground pipelines. lambda_4 is used to improve visibility in runway during fog and mist conditions. Write one more application of each.

Electromagnetic waves with wavelength lambda_1 used in statellite communication. lambda_2 used to kill germs in water purifies. lambda_3 is used to detect leakage of oil in underground pipelines. lambda_4 is used to improve visibility in runway during fog and mist conditions. Arrange these wavelengths in ascending order of their magnitude.

Electromagnetic waves with wavelength (i) lambda_(1) is used in satellite communication. (ii) lambda_(2) is used to kill germs in water purifies. (iii) lambda_(3) is used to detect leakage of oil in underground pipelines. (iv) lambda_(4) is used to improe visibility in runways during fog and mist conditions. Write one more application of each.

Electromagnetic waves with wavelength (i) lambda_(1) is used in satellite communication. (ii) lambda_(2) is used to kill germs in water purifies. (iii) lambda_(3) is used to detect leakage of oil in underground pipelines. (iv) lambda_(4) is used to improe visibility in runways during fog and mist conditions. Arrange these wavelengths in ascending order of their magnetude.

Electromagnetic waves with wavelength (i) lambda_(1) is used in satellite communication. (ii) lambda_(2) is used to kill germs in water purifies. (iii) lambda_(3) is used to detect leakage of oil in underground pipelines. (iv) lambda_(4) is used to improe visibility in runways during fog and mist conditions. Identify and name the part of electromagnetic spectrum to which these radiations belong.