Physics To resolve an object in an electron microscope, The wavelength of the electrons must be close to the diameter of the object Both A & B None of these The wavelength of the electrons must be greater than the diameter of the object. The wavelength of the electrons must be close to the diameter of the object Both A & B None of these The wavelength of the electrons must be greater than the diameter of the object. ANSWER DOWNLOAD EXAMIANS APP
Physics Shaving mirror is Convex Parabolic Plane Concave Convex Parabolic Plane Concave ANSWER DOWNLOAD EXAMIANS APP
Physics Which, of the following radiations has the least wavelength ? G-rays X-rays B-rays A-rays G-rays X-rays B-rays A-rays ANSWER DOWNLOAD EXAMIANS APP
Physics Intensity of sound has no existence both subjective and objective existence an object existence a subject existence no existence both subjective and objective existence an object existence a subject existence ANSWER DOWNLOAD EXAMIANS APP
Physics What is refractive index ? None of above It is defined as the ratio of speed of light in vacuum to the speed of light in the medium. It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. It is defined as the product of speed of light in medium and in vacuum. None of above It is defined as the ratio of speed of light in vacuum to the speed of light in the medium. It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. It is defined as the product of speed of light in medium and in vacuum. ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the cleanest source of energy? Wind energy Biofuel Nuclear power Fossil fuel Wind energy Biofuel Nuclear power Fossil fuel ANSWER DOWNLOAD EXAMIANS APP
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