Question

Pa ans po makaka ans brainliest saken​

Answer 1

Answer:

Water pollution:

• Industrial waste

• Marine dumping

Noise Pollution

• Bursting crackers

• Traffic Noise

Solid waste pollution

• scrap from vehicles

• agriculture

Answer 2

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Class 12>>Physics>>Dual Nature of Radiation and Matter>>Photons and Photoelectric Effect>>The photoelectric work function for a me

Question

The photoelectric work function for a metal is 4.2eV. If the stopping potential is 3V, find the threshold wavelength and maximum kinetic energy of emitted electrons.

(Velocity of light in air =3×108m/s, Planck's constant =6.63×10−34J−s, Charge on electron =1.6×10−19C)

Medium

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Solution

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