3 years ago

The unit of power of a lens is.(a) Metre(b) Dyne(c) Dioptre

Physics

2 answers:

Flura [38]3 years ago

7 0

C that’s the answer

zhenek [66]3 years ago

5 0

Answer:

c. dioptre that's the answer.

You might be interested in

Identify the energy transformations in the image below:

Masteriza [31]

Answer:

B. Chemical to Electrical to Radiant

Explanation:

8 0

3 years ago

Object A attracts object B with a gravitational force of 10 newtons from a given distance. If the distance between the two objec

balandron [24]

By definition, the gravitational force is given by:

$F = G(\frac{m1m2}{r^2})$

Where,

G: gravitational constant

m1: mass of object 1

m2: mass of object 2

r: distance between objects:

We know that the force is equal to 10N:

$G(\frac{m1m2}{r^2}) = 10$

If the distance is double we have:

$F = G(\frac{m1m2}{(2r)^2}) = G(\frac{m1m2}{4r^2}) = \frac{1}{4}G(\frac{m1m2}{r^2})$

$\frac{1}{4}(10) = 2.5$

Therefore, the new force is:

2.5 newtons

Answer:

the changed force of attraction between them is:

A. 2.5 newtons

7 0

3 years ago

Read 2 more answers

A wire is stretched to double its length .what happened to its resistance and resistivity?<br><br>

sukhopar [10]

Resistivity of wire remains constant. As the length of wire gets doubled, the cross-sectional area will become half of its previous value because volume of wire remains constant. Hence, we can see that the new resistance is four times the previous resistance.

3 0

3 years ago

I need help with physics. Question 3 and 4. Thanks.

shusha [124]

It’s c and a I believe ask someone else to make sure but I’m pretty sure

6 0

3 years ago

explain why its possible for noble gases to exist in nature as isolated elements and not part of a compound

STatiana [176]

Because atoms of noble gases are stable.

6 0

3 years ago

The unit of power of a lens is.(a) Metre(b) Dyne(c) Dioptre​

The unit of power of a lens is.(a) Metre(b) Dyne(c) Dioptre