MDCAT Physics Chapter 7 Light Online Test With Answers

MDCAT Physics Chapter 7 Light Online Test

Sr. # Questions Answers Choice
1 The property of bending of light around obstacies is called interference reflection diffraction polarization
2 The length of the standard metre measured by Michelsion's interferometer comes out to be 1,553, 163.5 wavelength 1553.5 wavelength 155316.5 wavelength none of them
3 If the wavelength of light used in Michelsion's interferometer is 400 nm and the moveable mirror only moved throughλ/4, then the length moved will be 10 nm 10<sup>-2</sup>mm 1 nm 10<sup>-4</sup>mm
4 Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10-10m for first order diffraction is 4 x 10<sup>-10</sup>m 2 x 10<sup>-10</sup>m 0.2 x 10<sup>-10</sup>m 20 x 10<sup>-10</sup>m
5 In Michelsion's interoferometer, if the moveable mirror is moved through a distance 0.05 mm and 500 finges are observed, then the wavelength of light used is 1 x 10<sup>-7</sup>m 2 x 10<sup>-7</sup>m 1.5 x 10<sup>-7</sup>m 1 x 10<sup>-8</sup>m
6 In Michelsion's interferometer, if 'm' number of fringes are passed in front of a reference point when the moveable mirror is moved a distance L, then L = m<span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ</span> L = 2m<span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ</span> L = m<span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ/2</span> L = 3/2 m<span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ</span>
7 In Michelsion's interferometer, if a dark fringe is seen in the beginning, the next dark fringe will appear by moving the moveable mirror through a distance <span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ/2</span> <span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ/4</span> <span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ</span> 2<span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ</span>
8 Successive dark and bright fringes are formed each time the moveable mirror in Michelsion's interferometer is moved a distance <span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ/2</span> <span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ/4</span> <span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ</span> 3/2<span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ</span>
9 If the moveable mirror in Michelsion's interferometer moves a distanceλ/2, the path difference changes by <span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ/4</span> <span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ/2</span> <span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ</span> 3/2<span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 18px; text-align: center; background-color: rgb(255, 255, 248);">λ</span>
10 In Michelsion's interferometer the path difference is varied by moving compensatory plate moveable mirror fixed mirror telescope
11 Michelesion's interferometer is an instrument usually used to measure intensity of light speed of light wavelength of light dispersion of light
12 The idea of Michelsion's interferometer is based on the reflection of light interference of light refraction of light all of them
13 Michelsion devised the Michelson's interferometer in 1981 1891 1851 1881
14 Michelson's interferometer is an instrument that is capable of measuring distance with low precision high precision extremely high precision extremely low precision
15 At the point of contact of the lens and the glass plate, the incident and reflected rays interfere constructively destructively either of them none of them
16 Newton's rings are formed as a result of diffraction of light dispersion of light interference of light polarization of light
17 At the point of contact of the lens and the glass plate, the Newton's ring is dark bright either of them neither of them
18 In the Newton's ring, as we proceed towards the periphery of the lens, the thickness of air film gradually decreases gradually increases suddenly becomes zero all of them
19 In Newton's rings the thickness of air film at the point of contact is maximum minimum equal to wavelength zero
20 In the thin film, the path difference between the two reflecting waves depends upon thickness of film nature of film angle of incidence all of them
Download This Set

Is this page helpful?