Question

Fill in the blanks with the proper words.

a. The wavelength of visible light is between ........ and ........ .

b. GMRT is used for ....... waves.

c. A certain X-ray telescope is named after scientist .......... .

d. The first scientist to use a telescope for space observation was ................... .

e. The biggest optical telescope in India is situated at ......... .

Answer 1

a. The wavelength of visible light is between 400 nm and 800 nm.

b. GMRT is used for radio waves.

c. A certain X-ray telescope is named after scientist Subramanian chandrashekhar.

d. The first scientist to use a telescope for space observation was Galileo Galilei.

e. The biggest optical telescope in India is situated at Aryabhatt Research Institute of Experimental Sciences, Nanital.