Illumination Which cells in the eye are responsible for scotopic vision? Cone cells Both ‘a’ and ‘b’ Rod cells None of these Cone cells Both ‘a’ and ‘b’ Rod cells None of these ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of radians / meter. radians. steredians. degree. radians / meter. radians. steredians. degree. ANSWER DOWNLOAD EXAMIANS APP
Illumination Illumination can be expressed in candela. lux. lumens. radians. candela. lux. lumens. radians. ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela/metre square is the unit of which photometric quantity? Illuminance Luminous Intensity Luminance Luminous flux Illuminance Luminous Intensity Luminance Luminous flux ANSWER DOWNLOAD EXAMIANS APP
Illumination The solid angle subtended by an area of 2400 cm2 on the surface of a sphere of diameter 1.2 m is 1 / 3. 2 / 5. 2 / 3. 3 / 2. 1 / 3. 2 / 5. 2 / 3. 3 / 2. ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the number of lamps, each having 300 lumens, required to obtain an average illuminance of 50 lux on a 4m × 3m rectangular room? 5 6 4 2 5 6 4 2 ANSWER DOWNLOAD EXAMIANS APP
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