All categories

2 years ago

Why do plane mirrors and convex mirrors form only virtual images?

Physics

2 answers:

Alekssandra [29.7K]2 years ago

7 0

<span>B. because they cannot make light rays converge</span>

abruzzese [7]2 years ago

6 0

Answer:

B. because they cannot make light rays converge

Explanation:

When parallel beam of light incident of the plane mirror or convex mirror then light rays are reflected by the surface of mirror in such a way that it will not meet at any point of after the reflection.

So here the converging point of light rays are virtual point and hence we will say that its focal length is virtual focal length.

So here correct answer would be

B. because they cannot make light rays converge

You might be interested in

Students run an experiment to determine the rotational inertia of a large spherically shaped object around its center. Through e

Alex73 [517]

Answer: I = 3.6 m3

(C)

Explanation:

moment of inertia for spherically shaped object around it's center is given as

I = (2/5) mr²

substituting the r = 3m²

I = (2/5)*(9) m3

I = 3.6 m3

5 0

3 years ago

in a softball game, a batter hits the ball at the velocity of 27m/s and angle of 40 shown below. What is the maximum range of th

Nata [24]

Answer:

R = 73.25 m

Explanation:

We have,

Initial speed of the ball is 27 m/s

It is projected at an angle of 40 degrees

The maximum range of the ball is given by :

$R=\dfrac{u^2\sin2\theta}{g}$

Plugging all the values we get :

$R=\dfrac{(27)^2\sin2(40)}{9.8}\\R=73.25\ m$

So, the maximum range of the ball is 73.25 m

8 0

2 years ago

a geosynchronous satellite appears to remain over one spot on earth. a geosynchronous satellite has an orbital radius of 4.23 ×

Natasha2012 [34]

Given that,

radius, r = 4.23 x 10∧7 m

Period, T = ?

Since, we know that,

In a geosynchronous satellite, period is equal to the period of earth that is 24 hrs.

Therefore, Time period is equal to 24 hours.

8 0

2 years ago

A 35kg cannonball sits at rest on a flat level surface. What is the normal force exerted on the cannon ball. Use -9.8 m/s2 for a

Tom [10]

Answer:

a) N = 343 [N]

Explanation:

We must remember Newton's third law, which tells us that the force acting on a body is equal to the normal reaction force of equal magnitude but acting in the opposite direction.

$N=m*g$

where:

m = mass = 35 [kg]

g = gravity acceleration = 9.81 [m/s²]

$N = 35*9.8\\N= 343 [N]$

8 0

2 years ago

The trains pass each other.

Andru [333]

Answer:

Explanation:

4 0

2 years ago