Physics-Objective Related Question Answers
151. Electromagnetic theory of light was proposed by?
James Clark Maxwell
152. ‘The Corpuscular theory' related to light was proposed by?
Isaac Newton in 1675
153. The shadow obtained from a point source is a region of darkness which is called?
Umbra
154. The band of seven colours obtained due to the dispersion of white light is called?
Visible Spectrum
155. When frequency increases wave length?
Decreases
156. Colour with maximum frequency is?
Violet
157. Colour with minimum frequency is?
Red
158. Colour with maximum wavelength is?
Red
159. Colour with minimum wavelength is?
Violet
160. The colour that deviates maximum through glass prism is?
red
161. The colour that deviates minimum through glass prism is?
Violet
162. Colour used in laboratory for indicating danger?
Yellow
163. Colour sensitive to human eye?
Yellow
164. Colour used as danger signal?
Red
165. Corpuscular theory was propounded by?
Isaac Newton
166. Wave theory was propounded by?
Christiaan Huygens
167. Quantum Theory was propounded by?
Max Planck
168. Electromagnetic theory was propounded by?
James Clark Maxwell
169. Photo electric effect was propounded by?
Heinrich Hertz
170. Which surface reflects all form's of light and heat?
white surface
171. Which surface absorbs all forms of light and heat?
black surface
172. Red light passing through a green object, appears?
Black?
173. Why the Sky appears blue?
Due to the shorter wavelength of blue colour; it is scattered more than the red colour of longer wavelength
174. Primary colours are?
Red; Green; Blue
175. Primary colours used in colour television are?
Red; Green; Blue
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