(a) 420 nm (b) 500 nm (c) 450 nm (d) 490 nm Solution: Answer: (c) For reflection at the air-soap... View Article
(a) They are coherent (b) They have the same wavelength (c) They are linearly polarized perpendicular to each other (d)... View Article
(a) 25:1 (b) 5:1 (c) 9:4 (d) 625:1 Solution: Answer: (c) 9:4 \(\begin{array}{l}\frac{I_{max}}{I_{min}} = [\frac{\sqrt{I_1}+\sqrt{I_2}}{\sqrt{I_1}-\sqrt{I_2}}]^2\end{array} \) Imax/Imin = 25/1 (given)... View Article
(a) 10 λ (b) 25 λ (c) 50 λ (d) 100λ Solution: Answer: (c) 50 λ Path difference = λ/2π... View Article
(a) 100 nm (b) 300 nm (c) 50 nm (d) 200 nm Solution: Answer: (a) Condition for constructive interference is... View Article
(a) 0.5mm (b) 1mm (c) 1.5mm (d) 2mm Solution: Answer: (c) 1.5mm Fringe width, β = Dλ/d When immersed in... View Article
Solution: Underwater, the wavelength of the light would decrease, λUW = λair/nwater. Since the position of light and dark bands... View Article
(a) No fringes would be seen (b) Fringe width would decrease (c) Fringe width would increase (d) Fringe width would... View Article
Question: For sustained interference fringes in double slit experiment, essential conditions is/are 1. sources must be coherent 2. the intensities... View Article
Question: In a double slit interference experiment, the fringe width obtained with a light of wavelength 5900 A was 1.2... View Article
(a) constant phase difference (b) equal amplitude (c) Both (a) and (b) are correct (d) Both (a) and (b) are... View Article
(a) Maxwell provides compelling theoretical evidence that light is a transverse wave. (b) Thomas Young experimentally proved the wave behavior... View Article
Solution: The wave nature of radiation can not explain the following: (1) The instantaneous ejection of photoelectrons (2) The fact... View Article
(a) Interference (b) Diffraction (c) Photoelectric effect (d) Polarisation Solution: Answer: (c) Photoelectric effect Photoelectric effect can be explained only... View Article
(a) Isaac Newton (b) Christian Huygens (c) Thomas Young (d) Augustin Jean Fresnel Solution: Answer: (b) Christian Huygens
(a) alpha rays (b) beta rays (c) gamma rays (d) none of these Solution: Answer: (d) In the given options... View Article
(a) 1(b) 1/9(c) 1/4(d) 1/3 Solution:Answer: (c) 1/4Intensity of fringe is directly proportion to width os the slits. Therefore, I2/I1... View Article
1) n3 2) n2 3) \(\begin{array}{l}n^{n^{2}}\end{array} \) 4) nn Solution: The number of binary operations that can be defined... View Article
1) 53/18 2) 53/9 3) 35/18 4) 35/9 Solution: Given f(x) = x3 – 9x + 1 x0 =... View Article
1) 33 2) 34 3) 39 4) 93 Solution: The number of binary operations that can be defined on... View Article
