The reason for low angle of deviation for red colour in dispersion of light is due to its …………………
A) low refractive index
B) high refractive index
C) low wavelength
D) frequency
1 Answers
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There are two boxes, red and white in colour. The ratio of the number of chocolates in the white box to the number of biscuits in the red box is ` 3 :
Correct Answer - ` 18 : 13`
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Explain the following terms with respect to precise measurement : i. Absolute deviation ii. Mean absolute deviation iii. Relative deviation
i. Absolute deviation : An absolute deviation is the modulus of the difference between an observed value and the arithmetic mean for the set of several measurements made in the same...
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The nature of substance that converts blue litmus to red, but no change of colour with red litmus is
Correct option is C) Acid
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Red blood cells are red in colour due to the presence of A) haemoglobin B) fibrinogen
A) haemoglobin
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The relation among angle of incidence (i1) angle of emergence (i1) angle of deviation (d) and angle of prism (A)
C) A + d = i1 + i2
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The red colour in a rainbow will be seen when the angle between a beam of sunlight and light sent back by a raindrop ………………….
Correct option is A) 42°
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Blue colour of the sky is due to scattering of light. Reason
C) A is true but R is false
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What is the angle of deviation of reflected ray if ray of light is incident on a plane mirror at an incident angle θ?
When a ray of light is incident on a plane mirror at an angle θ, the reflected ray gets deviated by an angle of (π – 2θ).
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The complementary angle of an angle is twice the angle, then the angle is
Correct option is (B) 30° Let the angle be x. Then its complementary angle is 2x. \(\therefore\) x+2x = \(90^\circ\) \(\Rightarrow\) 3x = \(90^\circ\) \(\Rightarrow\) x = \(\frac{90^\circ}3=30^\circ\) Hence, the required angle is \(30^\circ.\)
2 Answers 1 views