Physics, 31.10.2019 14:31 shaffergabe10

Which is a characteristic of the image formed between f and the center of the lens?
the image is located between f and the center of the lens, on the other side of the lens.
the image is real.
the image is upright.
the image is bigger than the actual object.

Which is a characteristic of the image formed between f and the center of the lens? the image

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Answer from: ctyrector

The image is upright.

Explanation:

A concave lens or diverging lens is thinner at its center and thicker at the edges. The light rays after refraction through the lens appear to diverge from the focus of the lens. A concave lens always forms a virtual image which is upright and diminished.

Thus, the image of the object kept between F and center of the lens would be upright, virtual, diminished and formed at the same side of the object between the focus F and center of the lens.

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.

Answer from: Quest

You would need to take a picture so i can see

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Which is a characteristic of the image formed between f and the center of the lens?
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