sun emits light having maximum intensity at a wavelength 468nm. Assume emissivity of sun is 1. Calculate its surface temperature. σ= 5.67*10-8W/m2K4. a) 6800K b) 3400K c) 6196K d) 7200K
Q: Two bodies of masses 5kg and 15kg are located in the cartesian plane at (1,0) and (0,1). What is the...
A: Given: The mass of first body is m1=5 kg. The mass of second body is m2=15 kg. The position co-ordi...
Q: suppose that, the last 2 digits of student number is 57
A:
Q: For a freely falling body, which of the following quantities are subject to change? a) Total kinetic...
A: B
Q: body has a moment of inertia = 5kgm2 about an axis. What should be the torque for increasing its ang...
A: C
Q: 10. Ã= -2â +-3ŷ and B = -4î +-4ŷ. Calculate R = Ã+B. Calculate 0, the direction of R. Recall that 0 ...
A: The angle of the vector with respect to the +x-axis is given by Where Rx = x-component of vector, R...
Q: 2-
A: Correct Answer: a) 253 m/s Given- Mass (m) = 10.0 g = 0.01 kg Length (L) = 2.00 m Tension force (F) ...
Q: Near a large body of water, the fluctuations in air temperature are usually less extreme than they a...
A: Near a large water body, the weather is generally moderate, but for places that are far away from an...
Q: wire has a young’s modulus of 105N/m2, length 1m & radius 3mm. Assuming a uniform cross sectiona...
A: A
Q: Two particles A and B, initially at rest, start moving towards each other under a mutual force of at...
A: A
Q: Bulk modulus is defined as -P / (ΔV/V). Therefore it can be negative. True or False? a) True b) Fals...
A: B
Q: A ball of mass 100 g is moving with a velocity of 3 m/s towards east. A cube of mass 200 gram is mov...
A: C
Q: Which of the following is used to measure pressure? a) Ammeter c) Speedometer c) Barometer d) Voltme...
A: C
Q: What will be the value of acceleration due to gravity on the surface of the earth if the radius of t...
A: D
Q: Replace the 12-kN force acting at point A by a force-couple system at (a) point O and (b) point B.
A: As the force is acting at 30° with the horizontal plane. So by dividing it into two components, we g...
Q: The only natural satellite of India is the moon. a) True b) False
A: A
Q: The centre of masses of two particles with masses 2 kg and 1 kg located at (1,0,1) and (2,2,0) is lo...
A: A
Q: Coefficient of viscosity doesn’t depend on temperature because it is a property of the fluid. True o...
A: B
Q: Current Attempt in Progress Arocker arm with rollers at A and B is shown in the position when the va...
A: Given:-
Q: geostationary satellite seems to be fixed in the sky because it does not orbit the earth. a) True b)...
A: B
Q: Select the correct statement. a) Radiation doesn’t require any medium b) Convection involves heat tr...
A: a
Q: The orbital velocity of a satellite orbiting the earth is half the escape velocity of the earth. Wha...
A: C
Q: Hooke’s law states that _________ a) stress is always proportional to strain b) stress is proportion...
A: C
Q: The figure (Figure 1) shows a model of a crane that may be mounted on a truck.A rigid uniform horizo...
A: Newton's Second Law of Motion According to Newton's Second Law of motion, the rate of change of mome...
Q: Select the correct statement for melting of any substance. a) It occurs at the same temperature as t...
A: D
Q: Two eesistamces of 30 n each are sees mith voltg. a source of II0V. heat in Joulo peududd Fund the f...
A:
Q: The power P (watts) of an electric circuit isrelated to the circuit’s resistance R (ohms) and curren...
A: Given:The power P of an electric circuit is related to the circuit's resistance R and current I by t...
Q: radius of the moon is approximately 3.7 times smaller than the radius of the earth. Assuming that th...
A: A
Q: ball of mass 3 kg and a ball of mass 2 kg roll towards each other on a flat surface. How far is the ...
A: B
Q: Please show all work and highlight your answers. Thank you!
A: Given: The initial velocity of the alpha particle, directed towards the center of the nucleus: vi=2....
Q: small body having mass 1kg is rotating in a circle of radius 10cm. It is connected to the centre wit...
A: A
Q: Q2) Use Gauss's law to find the electric flux density everywhere in space if the volume charge densi...
A: Given : ρv = 4 cos1000πρ nC/m31.25 mm < r < 1.75 mm
Q: What is the gravitational force experienced by an object of 10kg 200m away from an object weighing 1...
A: a
Q: A capacitor of 3.23µF has an area of 6.35mm^2. Determine the separation distance between the two pla...
A: Given: The capacitance of the capacitor c = 3.23 µF. The area of the plates A = 6.35 mm2. The new c...
Q: Viscosity is said to be internal friction between fluid layers. What type of force is it? a) Electro...
A: A
Q: the Duaw truth tible the given ciecint D Prove that (thow) the guien circuit is output as ' that! ga...
A:
Q: rigid body is rotating about an axis. One force F1 acts on the body such that its vector passes thro...
A: C
Q: Which scientist introduced the universal law of gravitation? a) Albert Einstein b) Isaac Newton c) S...
A: B
Q: Boyle’s law and Charle’s law together form which law? a) PV/T = constant b) PV2/T = constant c) PV =...
A: Option
Q: Which of the following is the variation of acceleration due to gravity at a depth “d” below the eart...
A: D
Q: What is the value of coefficient of area expansion for a sphere? Assume coefficient of linear expans...
A: A
Q: The elastic potential energy varies linearly with displacement. a) True b) False
A: B
Q: The distance between the centres of carbon and oxygen in the carbon monoxide molecules is 1.13 x 10-...
A: A
Q: What is the value of Wien’s constant? a) 2.9*10-3mK b) 2.9*10-4mK c) 2.9*10-3cmK d) 2.9*10-4cmK
A: A
Q: If we supply equal amounts of heat to equal masses of two different substances, the rise in temperat...
A: B
Q: Consider the electron of a Li2+ ion that undergoes a transition from a higher energy state n to its ...
A: Given: The threshold frequency of potassium is 5.464×1014 s-1. Introduction: The photoelectric effec...
Q: Stress, like pressure, is always perpendicular to a plane. True or False? a) True b) False
A: B
Q: The radius of a planet is “R” and mass is “M”. A satellite revolves around it in an orbital radius o...
A: C
Q: A uniform free rectangular steel plate is heated from 273 to 373 kelvin. The initial area of the pla...
A: A
Q: Capacitors C1 C2 and C3 are connected as shown in the figure below. If the capacitors have capacitan...
A: from the above figure, we can conclude that capacitor c1 and c2 are in parallel connection and resul...
Q: Which of the following formulas is called Hooke's law? O S: = O a = Ee O M, = M; + M %3D %3D max M. ...
A: From the Hook's law stress is directly proportional to strain. Therefore, σ∝ε Further solving σ=Eε T...
sun emits light having maximum intensity at a wavelength 468nm. Assume emissivity of sun is 1. Calculate its surface temperature. σ= 5.67*10-8W/m2K4.
a) 6800K
b) 3400K
c) 6196K
d) 7200K
Trending now
This is a popular solution!
Step by step
Solved in 2 steps