etermine the maximum and minimum illumination on the surface of a square table measuring 1metre each.   a lamp with 400 C.P. in all directions is suspended above the centre of the table at a height of 2 meter.

Q: (a) A small light fixture on the bottom of a swimming pool is 0.72 m below the surface. The light…

A: depth of pool (h) = 0.72 m refractive index of water (n) = 1.33

Q: The figure shows a body of liquid where 2 meter tall pillar extends vertically from the bottom to a…

A: μwater = 4/3.Apply snell's law(sin 33) × 1 = sin r × 4/3.sin r = 0.4301r = 25.47

Q: The Sun appears at an angle of 55.8° above the horizontal as viewed by a dolphin swimming…

A: θ1 = 55.8orefractive index of water = 1.333refractive index of air = 1

Q: 8. A beam of natural light is incident on an air-glass interface at 40 degrees. Compute the degree…

A: Given A beam of natural light is incident on an air-glass interface at 40 degrees. Compute the…

Q: A lamp at a distance of 3 m above the point P on the floor of the room in P produces a glow of 100…

A: Given at d=3m, b=100lm/m2

Q: of Shell's law, ray Iight is entering to medium from air, sini 1 (a) sinr u sin i (b) = Ll sin r sin…

A: the correct formula of snell's law when ray of light entering to medium from air:given,refractive…

Q: HW7 Q10 A submerged scuba diver looks up toward the calm surface of a freshwater lake and notes…

A:

Q: A small light bulb is set at the bottom of a pool with water in it sending light outward and upward.…

A:

Q: Q.4. The refractive index of a liquid is 1.4104 at 20 °C. Calculate the refractive index of the…

A: Refraction: The change in direction of a wave travelling from one medium to another caused by its…

Q: Rays of the Sun are seen to make a 36.0° angle to thevertical beneath the water. At what angle above…

A: Angle, A = 36°  refractive index of water, n = 1.33

Q: Given the following spotlights placed as shown in the diagram. Assume isometric distribution of the…

A: Illuminance is defined as the luminous flux incident on a surface per unit area. It measures the…

Q: If n = 1.30, what is the largest angle of incidence 0, for which total internal reflection will…

A: Using Snell's law When the light goes from medium with refractive index n1 to medium with refractive…

Q: A ray of light is incident on the surface of a crown glass plate at an angle of 35O with the normal.…

A: According to the Snell’s law, the angle of refraction is…

Q: . A 1,000-lumen light source emits a beam of light to point on an inclined surface. The source is 1…

A: Given: Q.8. The luminous flux of the light is L=1000 lumens. The distance of the source from the…

Q: 1) A ray of light is incident at a 40° angle upon the edge of a block of glass as shown below. The…

A: Given data The incident angle is given as θi=40°. The refractive index of air is given as na = 1.…

Q: An opaque cylindrical tank with an open top has a diameter of 3.25 m and is

A:

Q: Light rays from the Sun, which is at an angle of 64o above the western horizon, strike the still…

A:

Q: The eyes of a person standing at the edge of a 1.2-m-deep swimming pool are 1.6 m above the surface…

A:

Q: Calculate The Tefrective index of a substance iF The speed of light in That Medium is b) 1.5 x10° m

A: Refractive index of a substance is given by, u = c/v  where, u is the refractive index of the given…

Q: 1) Calculate the speed of light in ice. Index of refraction of ice is nice = 1.31. (Express to 3 sig…

A: The speed of light in a medium is related to its index of refraction () by the following…

Q: Light travels from air into a fluid which has a refractive index of 1.55. The angle of incidence is…

A: sinθi=sin41°=0.656

Q: In what substance in Table is the speed of light 2.290×108 m/s?

A: Refractive index is the ration of the speed of light in vacuum to the speed of light in that…

Q: Just after a motorcycle rides off the end of a ramp and launches into the air, its engine is turning…

A: We are given initial angular velocity of engine. We are also given the final angular velocity of…

Q: 8. Light strikes the 70° glass prism (n = 1.51) with an angle of incidence of 50.0°. Calculate the…

A:

Q: Brewster's angle from the air to the glass (n=1.5) is how far away? A temperature of 78.4 degrees…

A: Concept: Brewster's angle (also known as the polarization angle) is the angle of incidence at which…

Q: Q 7 A ray of monochromatic light is traveling in flint glass. The ray strikes the flint glass-air…

A: When angle of incidence is greater critical angle,then no refraction will take place. The ray is…

Q: If glycerine has an index of refraction of 1.473, what is the speed of light through this liquid?

A: Given: The refractive index of the glycerine is 1.473.

Q: Rays of the Sun are seen to make a 33.0​∘ angle to the vertical beneath the water. At what angle…

A: