A person 1.5 m tall stands 4.0 m from a convex mirror and notices that he looks precisely half as tall as he does in a plane mirror placed at the same distance. What is the radius of curvature of the convex mirror?

Q: There are two speakers on the x-axis and they are positioned such that one is behind the other. Both…

A: There are two speakers on the x-axis and they are positioned such that one is behindthe other. Both…

Q: 2. Complete the table: Mercury boils Greatest density of water CO₂ solidifies Room temp. Body temp.…

A: The relationship,  °F-32 = °C x 9/5  K = °C + 273  (i) For Mercury, T = 357°C °F = 674.60 K = 357 +…

Q: 44. (a) What is the equivalent resistance between points A and B? (b) A 276-V emf is connected to…

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Q: The earth orbits the sun once every  π x 107 s at a distance of  1.5 x 1011 m.  Assuming uniform…

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Q: How is a dynamic loudspeaker and dynamic microphone Similar? How are they different?

A: Dynamic Speaker The common type of loudspeaker that uses a magnetic field to move a coneshaped…

Q: What frequency of sound traveling in air at 32 C has a wavelength of 0.36 m?

A: Given: Critical temperature (Tc) = 32 ℃ Wavelength (λ) = 0.36 m

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Q: Two positive point charges Q and 2Q are separated by a distance R. If the charge Q experiences a…

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Q: 2. A student throws a set of keys vertically upward to her sorority sister, who is in window 4.00 m…

A: Given : Height, h = 4.00 m  Time taken, t = 1.5 s  Find : (a) Initial velocity of the key  (b)…

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Q: A 15.0 kg wood block is sliding on a smooth surface at a speed of 8.50 m/sec. A spring with a spring…

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Q: The weight of a crate is 200 N. If the man pulls on the rope with a constant force of 30 N, what is…

A: Solution:- 1) According to the Newton's second law of motion the net force acting on an object is…

Q: VRMS-1 Consider a container of Argon gas at a temperature of 25.0 °C. The mass of an Argon atom is…

A: Given Temperature of the gas is given as T=25.0°C=25.0+273 K=298 K Mass of Argon atom is M=39.96…

Q: Find the value of work done is 140 J and displacement is 7 m. Find the force applied ?

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Q: Experiment: Optical Disk 1. How to do ray tracing? 2. Give atleast one example

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Q: A 9.0 V battery is connected to four light bulbs (It has four resistors 2 ohms, 4 ohms, 4ohms, and 6…

A: When circuit elements such as resistance, capacitance, inductors, and devices such as p-n diodes are…

Q: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

A: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

Q: During the spin-dry cycle of a washing machine, the motor slows from 98.0rad/s to 36.0rad/s while…

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Q: A helium-neon laser (2= 632.8 nm) is used to calibrate a diffraction grating. If the first-order…

A: Diffraction gratings Diffraction gratings result sharp diffraction spectra when light is enter into…

Q: downward 8.7 N force (F1) is applied 2 m from the left end of an object. An upward force (F2) is…

A: downward 8.7 N force (F1) is applied 2 m from the left end of an object. An upward force (F2) is…

Q: A proton moves perpendicular to a uniform magnetic field B at a speed of 1.00 × 10^7m/s and…

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Q: 9. What power is dissipated in resistor RL in the circuit below? Answer: 11.52mW R1 R3 1k2 1k2 V1 6V…

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Q: A 1.6 kg ball has a momentum of 19.1 kg m/s. What is the ball's speed?

A: Given : Mass of ball (m) = 1.6 kg Momentum (P) = 19.1 kg .m / s. Required : Speed (V) = ?

Q: A 0.07 kg hockey puck slides across an icy surface and experiences a small friction force of 0.08 N…

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Q: The light rod is pivoted at O and carries the 5- and 10-lb particles. If the rod is released from…

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Q: At t=0 a grinding wheel has an angular velocity of 24 rad/s. It has a constant angular acceleration…

A: Solution:-

Q: Suppose a person walks so that their displacement is represented by a vector that has a magnitude of…

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Q: Two point charges, q1 = +20.0 nC and q2 = +10.0 nC, are located on the x-axis at x = 0 and x = 1.00…

A: Given q1 = +20.0 nC placed at origin q2 = +10.0 nC placed at x= 1.00 m WWe have to find the position…

Q: A block with mass m is placed on the top of a smooth cline. The cline is h=4.7m high. The block is…

A: According to work-energy theorem :- work done by all the forces is equal to change in kinetic…

Q: A 70 kg box is resting on a reclining floor. The coefficient of fricion between the floor and the…

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Q: need help with these questions. The question reads: A uniform electric field has magnitude 240 N/C…

A: Given data as per question Electric field  =  240N/C charge =4.2nc

Q: 2. How much heat is required to convert 2.0 kg of ice at 0°C to steam at 110.00°C? Answer: Q =…

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Q: An airplane with an airspeed of 80 meters per second is due east, gaining altitude, and has a line…

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Q: 2. Why is wearing headphones outside during a thunderstorm a bad idea?

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Q: A UFO is traveling away from a spaceship at 0.74c. A probe leaves the spaceship at a speed of 0.3c…

A: A UFO is an Unidentified Flying Object. If we See something in the sky and we don’t know what it is…

Q: The system is released from rest with the spring initially stretched 3 in. Calculate the velocity v…

A: We know, 1lb=0.454kg 1in=0.025m

Q: A spaceship, moving away from Earth at a speed of 0.948c, reports back by transmitting at a…

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Q: A person whose eyes are H= 1.69 m above the floor stands 2.20 m in front of a vertical plane mirror…

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Q: From a hot air balloon at an elevation of 310 m, a stone is dropped. Two seconds later another stone…

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Q: Which of the following affect the magnetic energy of a current-carrying coil. Select all that apply.…

A: Let's check each option one by one a. Current I Correct magentic field is directly proportional to…

Q: 5. A hawk flies in a horizontal arc of radius 12.0 m at constant speed 4.00 m/s (a) Find its…

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Q: . When taking the measurement of the line currents in a three phase circuit, you must first know if…

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Q: During temperature measurement, it is found out that a thermometer gives the same temperature…

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Q: An electromagnetic wave strikes a 1.20-cm2 section of wall perpendicularly. The rms value of the…

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Q: The place kicker on a football team kicks a ball from ground level with an initial speed of 8.60 m/s…

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Q: A 70 kg box is resting on a reclining floor. The coefficient of friction between the floor and the…

A: mass of box (m) = 70 kg coefficient of static friction = 0.3coefficient of kinetic friction = 0.10

Q: nH₂0 = 1.33 nglass 1.5 Derive the critical angle for water. nair = 1.0

A: Given that                     The refractive index of glass is nglass = 1.5                     The…

Q: A toroid with a square cross section 3.0 cm x 3.0 cm has an inner radius of 15.0 cm. It is wound…

A: Given Data: The side of the square cross-section is: s=3.0 cm The inner radius of the toroid is:…

Q: Which of the following are TRUE? Choose only two (2). Select one or more: a. The range is…

A: let the initial velocity of a projectile = v Let the launch angle = θlet the range of a projectile =…

Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.