Physics After long periods of use, a grey spot develops on the inside of a bulb. This is because The heat of the bulb scorches the glass at the top The tungsten filament evaporates and collects there Glass undergoes a change due to the heat Dust inside the bulb condenses on the top The heat of the bulb scorches the glass at the top The tungsten filament evaporates and collects there Glass undergoes a change due to the heat Dust inside the bulb condenses on the top ANSWER DOWNLOAD EXAMIANS APP
Physics Solar cells work on the principle of Photosynthesis Photoconductive effect Photoelectric effect Photovoltaic effect Photosynthesis Photoconductive effect Photoelectric effect Photovoltaic effect ANSWER DOWNLOAD EXAMIANS APP
Physics Electrical Pressure is also called Voltage Power Current Resistance Voltage Power Current Resistance ANSWER DOWNLOAD EXAMIANS APP
Physics Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre? -3.75 diopters 11.25 diopters -11.25 diopters 3.75 diopters -3.75 diopters 11.25 diopters -11.25 diopters 3.75 diopters ANSWER DOWNLOAD EXAMIANS APP
Physics Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength. Microwave, infrared, visible. X-rays X -rays, visible, infrared, microwave Visible, infrared, microwave, X-rays X - rays, infrared, visible, microwave Microwave, infrared, visible. X-rays X -rays, visible, infrared, microwave Visible, infrared, microwave, X-rays X - rays, infrared, visible, microwave ANSWER DOWNLOAD EXAMIANS APP
Physics An electron microscope gives higher magnification than an optical microscope, because : The electrons have more energy than the light particles The velocity of electron is smaller than that of visible light The wavelength of electrons is smaller as compared to the wavelength of visible light It uses more powerful lenses The electrons have more energy than the light particles The velocity of electron is smaller than that of visible light The wavelength of electrons is smaller as compared to the wavelength of visible light It uses more powerful lenses ANSWER DOWNLOAD EXAMIANS APP
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