Which of the following is the SI unit of luminous intensity? a) Sterdian b) Radian c) Mole d) Candela
Q: Calculate the wavelength of electrons accelerated from the rest state with the help of an electrical...
A: Given: The electric potential for accelerating an electron is V = 15000 V
Q: Classical electromagnetic radiation of higher intensity corresponds to ... a larger average photon...
A: Higher intensity means more photons ,option (3)
Q: Demonstrate that the Planck distribution reduces to the Rayleigh–Jeans law at long wavelengths.
A: Given Demonstrate that the Planck distribution reduces to the Rayleigh-Jeans law at long wavelengths...
Q: The displacement of an object with respect to a fixed point in the horizontal plane is ri = (2i-3j) ...
A:
Q: You hold a 338 grams of coffee in a 267 gram porcelain cup which is too hot to drink at 85°C. You wa...
A:
Q: 1. Why is Big Bang theory the most accepted theory on the origin of the universe? 2. How are Earth's...
A: Introduction: The Big Bang Theory is a cosmological model of the observable universe from the earlie...
Q: A 50kg satellite moves in circular orbit about the earth. At altitude of 1000km and 3700 km respecti...
A:
Q: which of the following is the rarer medium: Water Glass Diamond 1.33 1.5 2.42 Select one: O Water O ...
A: Which of the following is rarer medium from the given refractive indices.given,refractive index of w...
Q: In which of the following the momentum and energy of each body not conserved? a) Inelastic collision...
A: Option a
Q: A force F of 15 N and a moment M of 40 Nm act on the 4 kg of rod AB. The angular velocity of the rod...
A: Given information: The applied force, F=15 N The moment is, M=40 N·m The mass of the rod, m=4 kg The...
Q: A 500-N concrete block is to be lifted by the pair of tongs shown. Determine the smallest allowable ...
A: Given: The weight of the block to be lifted W = 500 N.
Q: A bullet of mass m = 4g fires towards a wooden block of mass M = 1.996kg and collides completely ine...
A: Collision Collision is a phenomenon where two bodies interact among themselves by exchanging energie...
Q: Let us assume that a resistor connected across terminals a and b in the following circuit draws a cu...
A: Given: The current drawn by the resistor between a and b is 5 A. The voltage drop across the 20 Ω re...
Q: derive the equation of Brewster's law of polarization by reflection
A: Brewster's law describe the phenomena of polarization of an unpolarized light which when incident on...
Q: Energy is neither created or destroyed. But why cant we utilize 100 percent of the energy coming fro...
A: Although energy is neither created nor destroyed but it can be converted from one form of energy to ...
Q: Which process happens inside a star? a) Electron Excitation b) Nuclear fusion c) Nuclear fission d) ...
A: Option b
Q: What is the value of the shunt resistance (S) required if a galvanometer has a resistance f 50 Ω and...
A: Option b
Q: A container of water has been outdoors in cold weather until a 5.0-cm thick slab of ice has formed o...
A: Given Thickness (y) = 5.0 cm = 0.05 m Temperature θ = -10°C ( Temperature difference θ =...
Q: When we steer a bicycle round a bend with both our hands on the handlebars, we apply a ___________ a...
A: Couple
Q: Which statement describes how sound waves are transmit A Sound waves are transferred from particle t...
A: Sound Sound is mechanical energy that causes the sensation of hearing. They are defined as the vibra...
Q: When the earth’s sun would die, it would change into a ____________ a) Supernova b) Nebula c) White ...
A: Our sun is a medium-mass star in the universe. Thus, when it would die, it would swell up into a red...
Q: A spherical ball of mass 20kg is stationary at the top of a hill of height 100m. It rolls down a smo...
A: Concept used: Gravitational potential energy is result of a conservative force. Hence, it depends on...
Q: A particle of mass M is moving in a horizontal circle of radius R with uniform speed v. When it move...
A: Option c
Q: The Q-value of fission reaction is of the order ___________ a) 10 MeV b) 100 MeV c) 200 MeV d) 500 M...
A: The Q-value of a reaction is the energy released in a fission reaction. It is of the order 200MeV pe...
Q: Nova are thought to occur in a system, X, in which a white-dwarf star orbits a red giant star. What ...
A: B) Binary System is the correct option.
Q: Solve plz
A: Correct Answer - 2.61 g/cm3
Q: The average kinetic energy associated with each degree of freedom is ________ a) kT b) 2kT c) kT/2 d...
A: Option c
Q: Discuss frequency and time division multiplexing
A: It has been noted that most of the single data-communicating devices generally need a modest data ra...
Q: a) Find the value for the constant po (including units), given that the total charge on the insulati...
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...
Q: Challenge Question: How do sea breeze and land breeze occur?
A: The air over the ocean is now warmer than the air over the land. The land loses heat quickly after t...
Q: How many degrees of freedom does a chemical compound of N atoms have? a) 2N b) 2N + 1 c) 3N d) 3N + ...
A: If a chemical compound breaks into N separate atoms, each atom is free to move in three directions r...
Q: Asappp
A: Boldface for vector notation According to Biot-Savart the magnetic field due to a line current eleme...
Q: A child weighing 20 kg is held in the position shown by the second child. (a) second child arms hori...
A: This is a problem based on newton's law. To solve this problem, The first step that we need to follo...
Q: A girl, while revolving in a circular orbit happens to throw a spoon outside. What will happen to th...
A: While revolving in a circular orbit, if a spoon is thrown outside, the spoon will continue to rotate...
Q: A radiant heating lamp has a surface temperature of 1000 K with ε = 0.8. How large a surface area is...
A: Q = εσAT^4A = .Q/(εσT4) = 250/(0.8 × 5.67 × 10-8 × 10004)= 0.0055 m2.
Q: Maxwell modified Ampere’s Circuital Law.
A: Maxwell modified Ampere’s Law. Ampere’s law is true just for steady currents. Maxwell found the s...
Q: One type of PV module consists of 72 cells and the size of each cell is 0.125 m x 0.125 m. The elect...
A: The power output of one module is given by: Substitute the required values and solve.
Q: A process, in which the gas is heated or expanded in such a way that the product of its pressure and...
A: In hyperbolic processes
Q: A spherical shell is of radius 5 cm and the potential at its surface is given by V (0) = 15 sin³ 0 –...
A: Given: The potential of a spherical shell is Vθ=15sin3θ-9sinθ. The distance and angle are 3 cm and π...
Q: answer only the d) speed e) initial height thank youuu
A: Part (d) Given: The wave equation of a particle is yx,t=2.0sin3.0x-4.0t+π2 m. The standard wave eq...
Q: Couple cannot produce a translational motion. a) True b) False
A: True
Q: Nuclear sizes are expressed in a unit named
A: Fermi
Q: The cluster of galaxies which is farthest from the Earth is __________ a) Abel 2218 b) Milky way c) ...
A: A
Q: A cube is defined by 1 < x, y, z < 1.2. IfD = 2x?ya, + 3x?y²a,-62 a.C/m (a) Apply Gauss's law to fin...
A: The flux density be defined as, D=2x2ax+3x2y2ay-6z2az
Q: The figure shows two parallel nonconducting rings with their central axes along a common line. Ring ...
A: Due to the symmetry of the given problem, there is no electric field along the perpendicular directi...
Q: When fatigue occurs above __ cycles, it is called high cycle fatigue. a) 10 b) 103 c) 106 d) 108
A: Option b
Q: In quantum mechanics, if the energy of the particle, E, is less than the energy required to enter a ...
A: Given: If the particle's energy E, in quantum mechanics is comparatively lesser the required energy ...
Q: Four protons (shown in red) are at the corners of a square, as shown. Which of the following stateme...
A: Electric field points outward for a positive charge. Since proton is a positive charge so the electr...
Q: The B/H ratio is not constant for ________ a) Diamagnetic materials b) Ferromagnetic materials c) Pa...
A: Option b
Q: A young star of several solar masses is called as ____________ a) LBV1806-20 b) Mira c) Cepheid d) S...
A: C
Which of the following is the SI unit of luminous intensity?
a) Sterdian
b) Radian
c) Mole
d) Candela
Step by step
Solved in 2 steps