Physics question and answers for October 30, 2023
- Q An object is 20.1 cm from the surface of a reflective spherical Christmas-tree ornament 3.07 cm in radius. What is the apparent position of the image?What is the magnification of...
- Q For the following lens, locate the image by drawing a ray diagram (3 rays) and describe the image as (inverted or upright, real or virtual, magnified or reduced).Converging lensa. Upright,...
- Q All of the following images can be formed by a converging lens except which one?Select one:a. virtual, upright, and magnifiedb. real, inverted, and magnifiedc. real, inverted, diminishedd. real, upright, and...
- Q You wish to photograph the image of your little sister, who is standing 2 meters from a plane mirror. Holding the camera beside her head, you should set the distance...
- Q Which two traits are characteristic of materials in which light travels relatively fast?a. They have a low index of refraction value are NOT very optically dense.b. They have a high...
- Q Light is not refracted when it isSelect one:a. traveling from water into air at an angle of 35 to the normal.b. striking a wood surface at an angle of 75.c....
- Q An apple is placed 21 cm from a convex lens with a focal length of 15 cm. A -8.6 cm tall image is produced at 29.2 cm. How tall is...
- Q A 3.0 cm tall object is placed in front of a convex mirror with a focal length of 5.0 cm.(A) If the object is 7.0 cm in front of the...
- Q A convex lens with a focal length of 6.8 produces an image at -48 cm. How far away is the object placed?Remember that a negative di means that the image...
- Q A 8.9 cm tall apple is placed 26.2 cm from a convex lens with a focal length of 15 cm. An image is produced at 52.6 cm. How tall is...
- Q An object is placed 15.6 cm from a convex lens. An image is produced at -57.6 cm. What is the focal length (in cm) of the lens?Remember that a negative...
- Q An image is produced by a concave lens. The image is virtual, upright, and smaller than the object. How far away is the object?farther than 2Fcloser than Fposition doesn't matterat...
- Q A light ray incident along vector 2i+4j+ ?5k strikes on the x-z plane from medium-I of refractive index 2 and enters into medium-Il of refractive index ??. The value of...
- Q A 3.0 cm tall object is placed 4.00 cm in front of a lens. An image is produced that is 6.0 cm and also in front of the lens.A. What...
- Q A real image is formed 25.0 cm from a mirror. The image is inverted and is 0.25 times the size of the object. What is the focal length of the...
- Q A 142 cm tall person stands 250 cm from a camera, which has a 15.0 cm focal length lens. How big is the image of the person on the film?...
- Q The Galenian telescope below has a total length of 18cm. Assuming a magnification of 10x, determined the focal lengths of the objective and the eyepiece. How long would a Keplerian...
- Q Two lenses are separated by 25 cm. the first lens has a focal length of 9 cm and the second lens has a focal length of 10 cm. If a...
- Q You are working on a physics problem to determine the focal length of a lens. In solving the problem, you find the focal length, f, to pe positive. Assuming this...
- Q A convex mirror is fomed from a portion of a sphere with a diameter of 16.4 cm. An object is placed in front of the mirror and the image distance...
- Q A diverging lens with a focal length |f|=20cm is placed 10cm to the right of a converging lens with a focal length of |f|=24 cm. An object is placed 96cm...
- Q Light with a wavelength of 654 nm falls on double slits of width a, a distance d apart. The 8th order interference minimum is 11.8 cm from the central maximum...
- Q To determine the depth of a swimming pool filled with water, we are given the width of the pool which is 6.50 m. If the far bottom edge of the...
- Q A convex lens of focal length fis placed in front of a screen. A point source of light is placed at some distance, (f< d < 4f) from the screen....
- Q A certain digital camera having a lens with focallength 7.50 cm focuses on an object 1.75 m tallthat is 4.70 m from the lens.AHow far must the lens be from...
- Q The glass core of an optical fiber has an index of refraction 1.60. The index of refraction of the cladding is 1.50.What is the maximum angle a light ray can...
- Q An object is 13 cm in front of a diverging lens with a focal length of -7 cm. You may want to review (Pages 973-978). Determine the location of the...
- Q The two mirrors in the figure below meet at a right angle. The beam of light in the vertical plane P strikes mirror 1 at 0, 42.2 as shown.(a) Determine...
- Q A violet ray of light leaves a medium with refractive index of 26.92 and enters a second medium with refractive index of 11.11 at an angle of 0.64 radians to...
- Q a) Suppose that in an imaging system using a lens the focal length of the lens is 4cm and the image plane is a distance 8cm behind the lens. How...
- Q A narrow beam of light is incident at the origin at angle i = 30 as shown in figure. The refractive index is function of y in region y 20...
- Q Suppose that you have a magnifying glass which you hold at arm's length to look at some text on a nearby poster. (a) Describe the features of the image you...
- Q As shown in the figure, a ray of light strikes a plane mirror with some incident angle. The mirror is now rotated by an angle of ? = 16.0 about...
- Q We know that the index of refraction of materials can help identify those materials. A light beam is shined onto a surface a reflected ray and is found to be...
- Q A clear plastic paperweight with an unknown index of refraction rests on your desk as shown in the figure. A ray of light enters the top of the paper weight...
- Q As shown in the figure, a light beam travels from air, through olive oil, and then into water. If the angle of refraction 02 for the light in the olive...
- Q The equation connecting s, p, and f for a simple lens can be employed for spherical mirrors, too. A concave mirror with a focal length of 9 cm forms an...
- Q A 1.2 cm-tall object stands in front of a converging lens. It is desired that a virtual image 2.1 times larger than the object be formed by the lens. How...
- Q You can determine the index of refraction of a substance by determining its critical angle.(a) What is the index of refraction of a substance that has a critical angle of...
- Q The focal length of a diverging lens is negative. If f = -11 cm for a particular diverging lens, where will the image be formed of an object located 31...
- Q A glass block with index of refraction n = 1.7 is immersed in an unknown liquid. A red beam of light traveling in the glass is incident on the top...
- Q An object (represented by an arrow) is placed 6 cm from a diverging lens, as shown in the diagram below. At this location, the object makes a virtual image that...
- Q An object is placed 5 cm from a diverging lens with a focal length of 3 cm.a) [1.5 points] Complete the ray diagram below to determine the location of the...
- Q A dentist uses a mirror to examine a tooth that is 1.00 cm in front of the mirror. The image of the tooth is formed 10.0 cm behind the mirror....
- Q A ray of green light struck a glass slab (with the index of refraction 1.52) at 30 degrees to the normal. Find the angle between reflected and refracted light. in...
- Q A ray of green light traveling in a glass slab (with the index of refraction 1.67) strikes the interface with the air at 30 degrees to the normal. Find the...
- Q Two mirrors are arranged at 110 degrees. If the light strikes the surface of the first mirror at 50 degrees to the normal and the reflected ray strikes the second...
- Q What is Malus law The principal planes of two Nicol prisms form an angle of 30 Prove that the intensity of the transmitted light diminished in the ratio of 3...
- Q Q4 a What will be the highest order spectra which may be seen with light of wavelength 5500A by means of a grating with 4000 lines cm the affect on...
- Q Question ID 20412 Two light waves from two coherent sources of intensity ratio 25 1 produce interference What is the ratio of the maxima and minima formed in the interference...
- Q In a YDSE distance between the slits is 2 mm the distance of the screen from the slits is 1 m and the wavelength of light used is 5000 The...
- Q A Young s double slit experiment is performed using light of wavelength X 5000 which emerges in phase from two slits a distance d 3 x 10 7 m apart...
- Q In standard Young s double slit experiment using two wavelength of light A 5000 and A 5500 the nth bright fringe of one wavelength coincides with n 1 th dark...
- Q In a standard YDSE set up d 1 0 mm D 1 m Now if one of the slits is covered with a transparent sheet of refractive index 1 4...
- Q In a double slit experiment when light of wavelength 400 nm was used the angular width of the first minima formed on a screen placed 1m away was found to...
- Q If the two slits in Young s double slit experiment are o unequal width then O The bright fringes will have unequal spacing The bright fringes will have unequal brightness...
- Q A clear sheet of polaroid is placed on the top of similar sheet so that their axes make an angle sin with 5 each other The ratio of intensity of...
- Q A compound microscope has a magnification of 30 The focal length of eyepiece is 5 cm The magnification produced by objective lens if the final image is formed at least...
- Q What will be the height of image of an object of height 2 mm placed on the axis of convex mirror of radius of curvature 40 cm at a distance...
- Q A point object O is placed in front of glass rod having spherical end of radius of curvature 30 cm The image would be formed at g 1 5 Glass...
- Q Two identical thin plano concave lenses u 1 5 each having radius of curvature 30 cm are placed in contact with common axis as shown in the figure If the...
- Q In a standard YDSE set up the intensity of the central maximum is lo The intensity at a point where the path difference between the light from the two slits...
- Q If the two slits in Young s double slit experiment are of unequal width then The bright fringes will have unequal spacing The bright fringes will have unequal brightness The...
- Q 10 Light of wave length 600 nm is incident on a single slit The first minimum of the diffraction pattern is obtained at a distance of 4mm from the centre...
- Q In Young s interference experiment two slits are illuminated with orange light of wavelength 6000 A The interference pattern is observed on screen far from slit planes If the central...
- Q ray of light falls on the surface of a spherical glass paper weight making an angle w the normal and is refracted in the medium at an angle B The...
- Q A single slit is illuminated by light composed of two wavelength A1 and X2 One observes that due to Fraunhofer diffraction the first minimum obtained for A1 coincides with the...
- Q 7 Light takes t sec to travel a distance x cm in vacuum and takes t sec to travel 10x cm in a medium The critical angle corresponding to the...
- Q A particle of mass m is constrained to move on the surface of a sphere of radius R The sphere is resting on ground a Set up the Lagrangian for...
- Q Example 9 When light of wavelength 5000A in vacuum travels through same thickness in glass and water the difference in the number of waves is 400 Find thickness Refractive indices...
- Q Light initially in air air 1 is incident at angle 01 64 on the surface of water Deter 1 33 The light passes through the water of thickness t 5...
- Q 10 points A beam of light travels trough water and hits a glass surface The angle between the incident beam and the normal to the glass surface is 0 39...
- Q 2 Three waves Y 2Asin wt 3 Y 2Asin wt in cot and y3 Asin t interfere 3 each other The amplitude of the resultant wave is NCERT Pg 377...
- Q The stars sometimes appears brighter and at some other time fainter This is because ucha au ff 3 4 STRUT Of atmosphere refraction Of scattering of light of The stars...
- Q Two coils have mutual inductance 0 01 H The current in the first coil change accordin g to equation 1 10 sin2wt where 10 5 A and w 5 0...
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