In an experiment on the refractive index of a medium, the angle of incidence is 30° and the angle of refraction is 20°. The refractive index n can be calculated by the formula n = sin i/sin r (i is the angle of incidence, r is the angle of refraction). So the refractive index...
更新3: That me Q.3 The resultant force acting on R is pointing downwards? Please help me to solve the questions in "Urgent question 3".1. The correct statements are (2) and (3). Statement (1) The thinning of ozone layer enhances the incidence of ultra-violet light fr...
Distance of the screen from the slits, D=1mWavelength of light used, λ_1=600nmAngular width of the fringe in air, θ_1=0.2°Angular width of the fringe in water =θ_2Refractive index of water, μ=4/3Refractive index is related to angular width as:∵Therefore, the angular width of...
Question. An object is immersed in a fluid. In order that the object becomes invisible, it should : D(a) behave as a perfect reflector(b)absorb all light falling on it(c) have refractive index one(d)have refractive index exactly matching with that of the surrounding fluid 相关知识点: ...
It is incident on a side of the block, making an angle = 50.0°. As it exits the block it undergoes refraction, leaving at an angle 8, = 59.0%. Part 1) What is the refractive index of the block? nblock Part 2) The wavelength of the...
(2)Refractive index =*(b) The student compares his value of refractive index with the values in the table to identify the type of plastic from which the block is made.Type of plastic Refractive index A1.494B1.498C1.509D1.519E1.531Comment on the limitations of using this method to identify ...
4 In this experiment, you will determine the refractive index of the material of a transparent block.Carry out the following instructions, referring to Fig. 4.1.O normal NA Dc eye ray-trace sheet Fig.4.1(a)Place the transparent block, largest face down, on the ray-trace sheet supplied. Th...
8 A student carries out an experiment to determine the refractive index u for light travelling from air into plastic. She shines a ray of light through a semicircular block of the plastic as shown.A The student measures different angles of incidence i and corresponding angles of refraction r....
9 A student does an investigation to determine the refractive index of a block made from flint glass.(a)She directs a ray of red light at the block, as shown in diagram 1.B Aflint glass air red light Diagram 1(i)Some of the light is reflected from the surface of the block at poi...
*16 A student carries out an experiment to measure the refractive index of glass. She does this by shining a ray of light through a semicircular glass block and into the air as shown.y x=30°y=48°x(a) Calculate the refractive index from air to glass ag.)Refractive index =(b)(i)...