Which of the following gases are filled inside the Photoelectric cells? a) Carbon Dioxide b) Nitrogen c) Neon d) Oxygen
Q: 5.5 metre length of string has a mass of 0.035kg. If the tension in the string in 77N, the speed of ...
A: A
Q: What is the other name for ultrasonic flaw detector? a) Destructive testing b) Magnetostrictive test...
A: Option
Q: Q7) The atomic nucleus uranium-235 has a spin of h Estimate its speed! 2
A: Solution: We know that R=r0A1/3 where r0=1.2×10-15 m The spin 72ℏ So, the angular momentum is L=mvR...
Q: Which of the following statements is true? a) Both light and sound waves can travel in the vacuum b)...
A: C
Q: J, F(t)dt The time average of a Force F (t) in the time interval t; and t2 is given as ty – ti a bal...
A: Average force is defined as change in momentum in unit time.
Q: I need parts A-D. Also can you draw the kinematic diagram/free body diagram while working the proble...
A: Part a To determine the magnitude of velocity of A with respect to B.Part B To determine the directi...
Q: Consider a germanium orystal. Calculate the number of the quantum states per om and the energy level...
A: Explanation: formulae to find the electron in the conduction BAND n=Nc.e-(Ec-EF)KT it is valid for ...
Q: They're all correct except the one on the bottom left that is incorrect. I need to explain this some...
A: From the given graph The velocity of the lead ball is seen to be constant as the slope of the graph...
Q: An iron rod is heated. The colors at different temperatures are noted. Which of the following colors...
A: A
Q: Explain how to derive Bernoulli's principle from Bernoulli's equation.
A: For deriving Bernoulli's equation, considering two assumption, fluid is incompressible and so densi...
Q: A train is approaching with velocity 25m/s towards a pedestrian standing on the track, frequency of ...
A: Option
Q: Sound travels through a gas under which of the following condition? a) Isothermal condition b) Non-i...
A: C
Q: An organ pipe closed at one end has a fundamental frequency of 1500Hz. The maximum number of overton...
A: C
Q: In a cathode-ray tube (CRT), an electron travels in a vacuum and enters a region between two "deflec...
A: Given data, L = 12 cm = 0.12 m d = 3 cm = 0.03 m t = 0.001 s ∆p→=<0,8.00 x 10-17,0> The fo...
Q: Europa is a moon of Jupitar. Europa has a mass of 4.8 × 1022kg and is 6.71 × 105km from Jupiter whic...
A: Newton's universal law of gravitation states that any two objects on the universe attracts each othe...
Q: A family ice show is held at an enclosed arena. The skaters perform to music playing at a level of 8...
A: The intensity I required for a sound level of β where, β=10logII0I0=1 x 10-12 W/m2The intensity of ...
Q: A total charge of Q is uniformly distributed along a line, which extends along the x- axis from x=0 ...
A: Charge on segment is given by, dq = λdx = QLdx
Q: If a particle travelling with a speed of 0.9 of the speed of sound and is emitting radiations of fre...
A: D
Q: The Earth is 8 light minutes from the sun and the speed of light is 3 × 10° m.s1. Let's assume that ...
A: Given data: Earth and sun distance is 8 light minute Speed of the light is 3×108 m/sec Earth and sun...
Q: Compton shift depends on which of the following? a) Incident radiation b) Nature of scattering subst...
A: C
Q: Q#2 (a) The relation for total energy (E) and momentum (p) for a relativistic particle is E = c²p² +...
A: Since, vp=ωk....(1)where, ω is angular velocityand k is propagation vectorvp=ωk=hωhk=Ep..... (2)Sinc...
Q: A position-time graph for a particle moving along the x axis is shown in the figure. The divisions a...
A: Part-a Given: The divisions along the vertical axis is 5 m. The divisions along the horizontal axis...
Q: In the experiment for the determination of the speed of sound in air using the resonance column meth...
A: B
Q: Do all exothermic phase changes have a negative value forthe entropy change of the system? (a) Yes, ...
A: For exothermic reaction the entropy change is the ratio the temperature at which heat ...
Q: A vehicle, with a horn of frequency n is moving with a velocity of 30m/s in a direction perpendicula...
A: B
Q: When a pebble is dropped into a pond of still water, what happens? a) Particles move b) Waves move c...
A: B
Q: Part A: At which of the following pointsis the magnitude of the electric field greatest? Please expl...
A: ANSWER: Part A: At which of the following points is the magnitude of the electric field greatest? T...
Q: (COLLAB Gauss's Law for Mass) Journey through the Center of the Earth. A 1024-kg blue ball is droppe...
A: Given : Mass of ball mB = 1024kg Distance d = 4×106m Radius of the ...
Q: A wave of frequency 100Hz travels along a string towards its fixed end. When this wave travels back,...
A: a
Q: For u’ < c and v < c the equation becomes ____________ a) u = u‘+vu‘vc2 b) u = u‘+v1+u‘v c) u ...
A: B
Q: Following two wave trains are approaching each other y1=asin200πt, y2=asin208πt. The number of beats...
A: Consider two waves, y1 = asinω2ty2 = asinω2t where, a is the amplitude of the two waves, and ω1 and ...
Q: Q#1 (a)(i)A thermal neutron has a speed v at temperature T = 300 K and kinetic energy m- 3 KT Calcul...
A: The de Broglie wavelength of a particle moving with momentum P is given by λ=hp............1where λ-...
Q: In a purely inductive AC circuit, L = 25.0 mH and the rms voltage is 150 V. Calculate the inductive ...
A: The rate of change of voltage in an inductive circuit is defined as, LdIdt=V (1) Suppose the ...
Q: Length of a string tied to two rigid supports is 40cm. Maximum length (wavelength in cm) of a statio...
A: B
Q: Which basic law is used for the derivation of mass variation with velocity? a) Law of conservation o...
A: c
Q: What is the effect of intensity on the stopping potential? a) As intensity increases, stopping poten...
A: D
Q: How does the intensity affect the photoelectric current? a) As intensity increases, the photoelectri...
A: A
Q: The equation of a simple harmonic wave is given by y=5sin(π/2) (100t-x) Where x and y are in metre ...
A: Answer
Q: 1: Find the general solution of the following equations: dy x+y-3 I. dx x+y+1
A: Given, dydx=x+y-3x+y+1 Let, x +y=z So 1+dydx=dzdxdydx=dzdx-1 Also dzdx-1=z-3z+1dzdx=z-3z+1+1dzdx=z-3...
Q: A cube with sides of proper length lo is viewed from a reference frame moving with velocity v, paral...
A: A
Q: When the length of the vibrating segment of a sonometer wire is increased by 1%, the percentage chan...
A: C
Q: A rod of length 1m moves with a speed of 0.5 c. How much length contraction takes place? a) 50 % b) ...
A: B
Q: htal road? F= , I remember significant figures.
A: Given: To find the rolling resistance and the power is given as,
Q: Please help with the attached problem.
A: we are given radial velocity of block r˙=4t m/s angular velocity of disc θ˙=6 rad/s radial position ...
Q: Two simple pendulum, whose lengths are 100cm and 121cm, are suspended side by side. Their bobs are p...
A: B
Q: The equation of wave is given by y=10sin(2πt/30+α) If the displacement is 5cm at t=0, then the tota...
A: D
Q: Your doctor has told you to watch your weight. Of course, your weight comprises two factors, so you ...
A: We know, Stretching force of the band is directly proportional to the expansion of band. The force p...
Q: (b) A metal surface is illuminated by 8.5 x 1014 Hz light emits electrons whose maximum energy is 1....
A: Given: The frequency of the light is 8.5×1014 Hz. The maximum energy is 1.97 eV. ...
Q: There is an electric flux of 35.5 N-m²/IC through the square region shown in the figure. Each side o...
A:
Q: . If the sun radiates energy at the rate of 4 x 1026 Js-1, what is the rate at which its mass is dec...
A: B
Which of the following gases are filled inside the Photoelectric cells?
a) Carbon Dioxide
b) Nitrogen
c) Neon
d) Oxygen
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
