Ques No.1: __________ is an instrument used to determine Refractive power of lens.
Ques No.2: The final image produced by a simple microscope is ____________
Ans: Virtual and Erect
Ques No.3: _________ is used for the detection of Light.
Ques No.4: A ________ is a device used for analysing polarized light.
Ques No.5: The spectrum of luminous bodies is studied by __________
Ques No.6: ___________ is used for conversion of low voltage into high voltage and vice-versa.
Ques No.7: ___________ is used to observe Retina.
Ques No.8: ________ works on the principle of Absorption of sound.
Ques No.9: Tuberculosis:
Ans: Robert Koch
Ques No.10: Logarithm Table:
Ans: John Napier