Physics, 26.07.2019 01:00 ginapogones4958

When light hits a rough surface and is reflected, it is called reflection. a. specular b. diffuse c. straight d. incident

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When light hits a rough surface and is reflected, it would be called a diffuse reflection.

B. Diffuse

When light hits something and reflects in a different directions, that's when the surface of the object is rough.

Answer from: hebrew1148

B. Diffuse

Explanation:

When light is incident on a surface, it bounces off the surface. This is known as reflection.

Laws of reflection state that angle of incidence is equal to angle of reflection and the incident ray, normal and reflected ray lie in the same plane.

When light hits a smooth surface, we observe a regular reflection. for example a plane mirror. A clear image is obtained.

When light hits an irregular surface i.e. a rough surface, diffuse reflection takes place. No clear image is formed.

Answer from: Quest

i think the answer would be reserve.

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

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When light hits a rough surface and is reflected, it is called reflection. a. specular b. diffuse c...