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When a metal is illuminated with radiation with a wavelength of 152 nm, photoelectrons are ejected with a velocity of 7.9 x 105 m/s.
What is the work function, in eV, of the metal?
Q. Define: current density. Give its unit. The amount of charge passing per unit time through unit area taken perpendicular to the direction of flow of charge at that point is
Path of a projectile The apparatus below can be used to indicate the independence of the horizontal and vertical velocities of a projectile. The projectile is a metal ball, and
Red light (λ = 685 nm) falls on a slit that is 0.025 mm wide. The distance between the centers of the central bright band and the second-order dark band is 6.3 cm. What is
How is sensitive flame method used for detection of ultrasonic waves? Sensitive flame method: A narrow sensitive flame is shifted along the medium. At the situations of anti
In airplane's airspeed is 2.0 x 102 km/h due east. Because of a wind blowing to the north, it is approaching its destination 15° north of east. a. What is the wind speed? b.
This depends on the arrangement of a beam or column. for a simply supported beam with a point load in the centre of the beam Mmax = WL/4 and will occur at centre span W is the lo
What are the types of fibre optics?
explain diffrent phases of liquid crystal
When wave emitted by a self luminous object is dispersed by a prism to get the spectrum, the spectrum is known as emission spectrum.
A proton and an alpha particle pass by the gap of a strong magnet. If both particles have the similar initial velocity, how many times greater will the defection of the proto
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