How stars are twinkling in the sky?
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Time taken by the body to move through a distance of 12 m is 2 s
Explanation:
using the equation for force
m= mass= 1 kg
F= force= 6 N
a= acceleration=
6= 1 a
a= 6 m/s²
Now using the kinematic equation,
d= distance= 12 m
V= initial velocity=0 as the object is at rest initially
12= 0(t)+ 1/2 (6) t²
t²=4
t= 2 s
Answer:
The Planck constant, or Planck's constant, is a fundamental physical constant denoted h, and is of fundamental importance in quantum mechanics. A photon's energy is equal to its frequency multiplied by the Planck constant. Due to mass–energy equivalence, the Planck constant also relates mass to frequency.
<h3>Theory:</h3>Planck postulated that the energy of light is proportional to the frequency, and the constant that relates them is known as Planck's constant (h). His work led to Albert Einstein determining that light exists in discrete quanta of energy, or photons.
E = hf