Which of the following is an SI unit

Physics

2 answers:

Elden [556K]3 years ago

7 0

Answer:

Option (D)

Explanation:

SI unit stands for System International. It is a scientific procedure that helps in describing the immensity and characteristic of a naturally occurring important events. These units are internationally accepted and are very widely used in the scientific world.

There are total 7 fundamental SI units and they are-

Kg (kilogram)- to express mass
s (second)- to measure time
K (kelvin)- to measure temperature
A (ampere)- to measure current
Mol (mole)- to express the substance amount
cd (candela)- to express intensity of a luminous substance
m (meter)- To measure distance.

Thus, the correct answer is option (D).

Alla [95]3 years ago

3 0

SI will always be in metric, so the answer is D. Meter.

You might be interested in

What is the relationship between lightning and thunder

PtichkaEL [24]

Whenever lightning strikes it separates the air where it goes. This air then rushes back together making a loud noise when it connects, creating thunder.

6 0

3 years ago

Which of the following statements about price elasticity of demand is true?

STatiana [176]

Answer:

B. The elastic portion of a straight-line, downward-sloping demand curve corresponds to the segment above the midpoint.

Explanation:

Elasticity measures the sensitivity of one variable to another. Specifically it is a figure that indicates the percentage variation that a variable will experience in response to a variation of another one percent.

The elasticity of demand measures the reaction of demand when one of the factors that affects it varies.

Elasticity - Price of demand.

easure the sensitivity of the quantity demanded to price variations. It indicates the percentage variation that the quantity demanded of a good will experience if its price rises by 1 percent.

Elastic Demand

The demand quantity is relatively sensitive to price variations, so the total expenditure on the product decreases when the price rises, the price elasticity takes value greater than -∞ but less than -1

7 0

2 years ago

What is meant by the statement that a laser beam is coherent, mono-chromatic and parallel?

Artyom0805 [142]

Answer:

Laser light however contains only one wavelength. This property makes lasers monochromatic, meaning of one color. Another property of lasers is that all the wavelengths are in phase, meaning they wave together. This property is called coherency. Laser light travels in the same direction, parallel to one another.

8 0

2 years ago

1. A large ball was let go on a hill and started rolling down with a constant acceleration of 4.2 m/s². What was the velocity of

pochemuha

Answer:

The velocity after 12s is 50.4m/s.

Explanation:

In acceleration formula make velocity the subject.

acceleration(a) = velocity(v)÷time(t)

<h3> velocity (v) = acceleration(a)×time(t)</h3>

V = 4.2m/s²×12s

V = 50.4m/s