What is the relationship between the power of a lens and its focal length? Group of answer choices Power is equal to the square of the focal length. These two quantities are not related. Power is equal to the square root of the focal length. Power is equal to one over the focal length.

Q: 1.27 The voltage and current at circuit element in Fig. 1.5 are shown in Fig, P1a of the element at ...

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Q: 1. How are images formed with plane mirrors? 2. How important is plane mirror to you?

A:   (1) In plane mirror always virtual Image formed , which  occurs where rays only appear to diverge ...

Q: What mass of water can be heated from 25.0° C to 50.0° C by the addition of 2825 J? * 27 gm O 22 gm ...

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Q: A 0.50-kg ball thrown vertically upward has an initial kinetic energy of 80 J. (a) What are its kine...

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Q: Q3: According to Bohr's theory, the time-averaged magnetic field at the centre (i.e. nucleus) of a h...

A: To find out :- The time- averaged magnetic field at the centre of hydrogen atom due to motion of ele...

Q: Why is it advisable to buy new pair of shoes in the afternoon than in the morning? 2 Why do enginee...

A:  It is advisable to buy a new pair of shoes in the afternoon than in the morning because feet natura...

Q: A woman in a hot air balloon drops her GoPro Hero 10 when the balloon is 175 ft above the ground and...

A: Given,  Height s = 175 ft upward velocity = 12 ft/s Using the equation of motion,  s = ut + (1/2)at2...

Q: The figure shows wire 1 in cross section; the wire is long and straight, carries a current of 4.04 m...

A: Given, Current in the wire 1, I1 = 4.04 mA = 4.04×10-3 A (out of the page) d1 = 2.52 cm d2 = 5.26 cm...

Q: n a strange railway line, there is just one infinitely long track, so overtaking is impossible. Any ...

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Q: AWS OF THERMODYNAMICS What is the answer to the following questions? 1.) In which process is the ...

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Q: Three point charges are located as shown in the figure. q1=-9 x 10-12 [C] and d¡ = 5 [cm] 92 =1 x 10...

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Q: A car travelling at a velocity of 25 m/s and suddenly stopped after skidding a distance of 100 m. De...

A: Given: Initial velocity of car, u=25 m/s Distance covered after skidding, d=100 m   To determine: 1 ...

Q: The velocity of oil in a supply line changes from 5.1 to 6.3 ft3/s when going from a large bore to a...

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Q: A disk, initially rotating at 134 rad/s, is slowed down with a constant angular acceleration of magn...

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Q: A bicyclist is stopped at the entrance to a valley, as sketched below: D Where would the bicyclist h...

A: We can answer only 3 subparts so we will answer only first 3. Please resubmit the question by specif...

Q: 18. A 5.00 X 10² kg communication sateliite is to be placed into a circular geosynchronous orbit aro...

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Q: A sound source emits an audible frequency of 512 Hz. Which would cause a greater Doppler shift in me...

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Q: The particle P starts from rest at point A at time t = 0 and changes its speed thereafter at a const...

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Q: At a temperature of 20.0o two speakers are sending sound waves of frequency 512 Hz and 2048 Hz respe...

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Q: Compute for the value of g in each height. Show all solutions. Height 1= 3meters Height 2= 3.8 meter...

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Q: A boy on a merry-go-round at a distance of 1.25 m from the center. If the boy moves through an arc l...

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Q: A sracimg car haea uniforrm what distonce will if cover in cað has acce/estation of dom)s? 4.

A: Given data :                      Initial velocity  =  u                            Time      =   t ...

Q: A sound wave of wavelength 4.20 m is generated in air where the sound speed is 345 m/s.  Who would b...

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Q: A gracing car unifortm what distonce, will .it coverin 19 secondo oftesithe t0gr ha d aceelestation ...

A: Acceleration (a) = 10 ms2Initial velocity (u) = 0 mstime (t) = 12 seconds   

Q: gnitude of F3, and F4 that will give a resultant force of 50 N, 33 degrees south of west of F1 = 100...

A: We know that we have given the four forces system, in which the magnitude of two forces is unknown. ...

Q: 1 kw = (1000 joules / sec) and 1 kwh = 3.6 x 10^6 joules %3D True O False

A: The answer is below

Q: The energy represent the product of one -half the mass of the body and the square of its velocity is...

A: Given  The statement is  The energy represent the product of one-half the mass of the body and the s...

Q: 1.30 The numerical values of the voltages and currents in the interconnection seen in Fig. P1.30 are...

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Q: A railroad car having a mass of 13 Mg is coasting at 1.5 m/s on a horizontal track. At the same time...

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Q: Formula: D = 1/F *1 – meter; 40 – inches; 100 – centimeters; 1,000 – millimeters Please answer a, ...

A: Part (a) Given data: The focal length of lens is F=16 cm.  

Q: A 4.0 kg mass, ml, hangs from a rope that runs over a massless frictionless pulley and is connected ...

A: a) Draw the free-body diagram of mass m1.

Q: If multiple capacitors are in a series circuit, describe how the total charge can be found. What if ...

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Q: Given the equation F=F0((x/x0)-1) F=find W if particle moves from x=0, x=3x0 if F0=10N x0=2m, plot r...

A: Work done by a force acting on a body to move it by a certain distance is given by W = F.s , where F...

Q: A certain lightbulb has a tungsten filament with a resistance of 20.5 Ω when at 20.0°C and 147 Ω whe...

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Q: An electric current is a flow of electron

A: In this question we have to answer whether the given statement is true or not. Please give positive ...

Q: Considering magnetic forces, how are forces at distance explained?

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Q: A 5.0 kg mass is initially at rest on a horizontal frictionless surface when a horizontal force alon...

A: (a) Write the expression of force. F=6x2-2x3

Q: Question 35 The radius of a planet is R, and a satellite revolves round it in a circle of radius R2....

A: GivenRadius of planet=R1Radius of rotation of satellite=R2Time period of revolution=T

Q: Object's mass is 15 kg is resting on a table. An external force ( 10 N) act with angle ( 30) on this...

A: Given value--- Force = 10 N. mass = 15 kg. angle = 30 degree . We have to find--- Find the minimu...

Q: A light bulb with a resistance of 2200 ohms is connected to a 220 V power outlet. a. How much curren...

A: Ohm’s law states that the voltage or potential difference between two points is directly proportiona...

Q: A screen is placed 50.2 cm from a single slit that is illuminated with light of wavelength 678 nm. I...

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Q: 5. An object of mass m = 30 kg is placed on a rough surface inclined by an angle 0 = 45° relative to...

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Q: A car traveling at (50 ft/sec) exerts a draw - bar pull of (20,000 lb). What horsepower does it deve...

A: Write the given values with the suitable variables. v=50 ft/sF=20000 lb Here, v is the velocity of t...

Q: A particle with a charge of q = -5.20 nC is moving in a uniform magnetic field of B =(-1.24 T ) 2. T...

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Q: In physics, what conditions must be satisfied if work is to be done?

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Q: Consider the system of force shown in the figure below. (a) Find the moment of force by each force a...

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Q: в) Water flows inside a pipe as shown in Fig. (3). At the lower point, the pipe diameter is 5 cm and...

A: Given data: The diameter at lower point is d1=5 cm. The pressure at lower point is P1=18 kPa. The d...

Q: The moment vector is perpendicular containing the force * O True False

A: False, Moment vector is perpendicular to force, not contiaing the force . Explanation :-     Since ,...

Q: Four resistors of 12 2 each are connected in parallel. Three such combinations are then connected in...

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Q: (4 blanks) An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 °C and ...

A: Since the machine is operating in a Carnot cycle then its efficiency is written as under,

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.