Which  is the fastest communication channel?

Q: What are two ways in which a communication medium can affect a signal?

A: We have to mention the two ways in which a communication medium can affect a signal.

Q: The wavelengths of visible light range from approximately 400 nanometers to 750 nanometers. a.…

A: Conversion  1 nanometer = 1nm = 10^-9 metre Also, frequency = speed of light/wavelength Also,…

Q: What is this symbol represents in curcuits?

A: According to question we need to answer the name of given symbol.

Q: 12 2 24 S 40 2 30 2 . 25.28 10 2 10 2

A:

Q: Radio waves travel at the speed of light, 300,000 km/s. The wavelength of a radio wave received at…

A: Given data: Speed (v) = 300,000 km/s Frequency (f) = 100 MHz Required: Wavelength (λ)

Q: Name the electromagnetic waves which (i) maintain the earth’s warmth and (ii) are used in aircraft…

A: (i) Infrared rays maintain the earth’s warmth and it is also used for heating purpose.

Q: It is necessary to use satellites for long distance TV transmission. Why?

A:

Q: hich bulb is brightest

A: Given:- R1=5.0 ohm  R2=5.0 ohm  R3=5.0 ohm  V= 10 V  Find:-  which bulb is brightest

Q: What is the standard unit of energy?

A: Energy can be expressed in terms of various units such as electron volts, Calories and Joules.

Q: Express 86 km h-¹ in ms-¹.

A:

Q: How does a ping pong launcher relate to the Grade 11 physics kinematics, forces, waves and sound,…

A: Since the launcher will launch the ping pong ball so that it launches with a parabolic trajectory,…

Q: How is a radio wave transmitted?

A:

Q: Mineral-insulated cables are not used in. O computers O smoke control systems O alarm circuits O…

A: Mineral insulated cables are made using copper conductors put inside sheath of copper. Inorganic…

Q: How to slove this question

A: Since the potential drop across the capacitor. so it is the case of the discharging of the…

Q: Choose the BEST answer to the following: A galvanometer can be calibrated to read electric (a)…

A: A galvanometer is an electromechanical device. It consists of a constant magnetic field, an iron…

Q: The total power of DELTA connected system is greater than three times of total Power of STAR…

A: Answer is False. Power in DELTA is exactly three times more than STAR.

Q: Digitized signals are represented by

A: In most digital circuits, the signals have two values. These signals is called logic signal signal…

Q: What is an induced movement?

A: Induced movement or induced motion is an illusion of visual perception in which a stationary or a…

Q: What do you mean by Drift Velocity?

A: Electrons move in random directions all the time. When electrons are subjected to an electric field…

Q: Why is electricity dangerous to humans?

A: Electricity flows from one point to another that will conduct it. One of the conductive substance of…

Q: Who discovered the radio waves?

A: Introduction: In the electromagnetic spectrum, several wavelengths of light are present.…

Q: For each light source, determine which part of the spectrum of visible light is predominant:…

A: For each light source, the part of the spectrum of visible light is predominant is as follows: These…

Q: and protons give rise to electrical force?

A:

Q: What is the wavelength of the 56,500 hz radio wave used by radio controlled clocks and wristwatches

A: Frequency, f=56500 Hz Speed of radio wave, v=3×108 m/s Wavelength, λ=vf=3×10856500=5.31×103 m=5309 m

Q: You see a lightning bolt. If you hear thunder 3 seconds later, how far away was the strike. How…

A: In air speed of sound is 343 m/s. Since someone hear after 3 seconds. so, distance traveled by sound…

Q: How much power does 5.7 watt LED light bulb produce in 60 seconds

A: Given: The power of an LED light bulb is 5.7 watts. Introduction: 1 Watt of power means that the…

Q: What is meant by drift velocity?

A: When a voltage difference is applied across the ends of a conductur, then an electric field is…

Q: How do the mass and electric charge of a proton compare with the mass and charge of an electron?

A: Let qp be the charge of the proton, qe be the charge on the electron, mp be the mass of proton, and…

Q: Earth's geographic north pole is actually earths magnetic pole. north O south east west

A: Ques:

Q: Why the north pole of the compass is attracted toward the geographic north pole of Earth?

A: From question: The north pole of the compass is attracted toward the geographic north pole of Earth.…

Q: Write the functions of the following in communication systems : (i) Receiver (ii) Demodulator

A:

Q: what is a light bulb in the modern age?

A: Ever since Thomas Edison invented the light bulb , the world has changed a lot. Although Edison…

Q: The angle between geographic and magnetic north for a particular location on Earth is called _______

A: The angle between geographic and magnetic north for a particular location on Earth is called…

Q: What Do You Mean By Am Radio?

A: AM Radio is a common example of Am modulation. 550 to 1720kHz will be the frequency band of AM…

Q: What Is The Radio Wave?

A: The primary building block of radio communications is a radio wave. The most popular application of…

Q: How do electrical-charge imbalances lead to lightning?

A: Lightning is a phenomena that happens due to imbalance in b/w charges of storm clouds & ground…

Q: It's the question in yellow

A:

Q: If the speed of light is 3×108 meters/second and the wavelength of an infrared wave used in a remote…

A:

Q: ᴄᴀʟᴄᴜʟᴀᴛᴇ ᴛʜᴇ ᴘʀᴇꜱꜱᴜʀᴇ ᴅʀᴏᴘ (ɪɴ ᴋᴘᴀ) ɪɴ 100 ᴍ ᴏꜰ ʜᴏʀɪᴢᴏɴᴛᴀʟ 20-ᴄᴍ-ᴅɪᴀᴍᴇᴛᴇʀ ᴘɪᴘᴇ ᴍᴀᴅᴇ ᴏꜰ ɴᴇᴡ ᴡʀᴏᴜɢʜᴛ…

A:

Q: This picture shows a radiometer. It is designed to be placed in a sunny window. One side of each…

A:

Q: Which part of the EM spectrum is used to transmit signals to and from satellites?

A: The part of EM spectrum that has maximum frequency are microwaves. Microwaves are produced by the…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.