What is the focal length of a spherical mirror if the radius of curvature is 30 cm?
Focal length of convex mirror is positive, hence here focal length will be +15 cm.
What is the radius of curvature of the mirror its focal length is 20cm?
The radius of curvature of a spherical mirror is 20 cm. What is its focal length? Therefore, the focal length of the spherical mirror is 10 cm.
What is the focal length of concave mirror?
Focal Length – The distance between the pole P of the concave mirror and the focus F is the focal length of the concave mirror. Thus, the focal length of a concave mirror can be estimated by obtaining a ‘Real image’ of a distant object at its focus, as shown in the figure.
What is the radius of curvature of a plane mirror class 10th?
The plane mirror is a part of sphere with infinite radius . It’s every part is a part of sphere. Hence, its radius of curvature is infinite. Hope This helps You!
What is the radius of curvature of a convex mirror?
If the radius of curvature is 150 cm. then the focal length is 75 cm. The light will converge at the focal point, which is a distance of 75 cm from the mirror surface….The Anatomy of a Curved Mirror.
| Principal axis | Center of Curvature | Vertex |
|---|---|---|
| Focal Point | Radius of Curvature | Focal Length |
What is the radius of curvature of a projectile?
Hint: At the highest point, the velocity and its acceleration are perpendicular. Hence, we can say that the projectile is in a circular motion, like it is in the case of a body in uniform circular motion. Thus, the acceleration of the projectile at point is a=v2R, where R is the radius of curvature.
What is the radius of curvature of it’s path at the highest point?
So, at the top most point, the velocity is horizontal and hence, the radius of curvature at that point is vertically downward. Therefore, R=ux^2/g. ux =u cos (theta). Her, ( theta) is angle of projection and u is velocity of projection.
What is the formula for time in projectile motion?
To find the time of flight, determine the time the projectile takes to reach maximum height. The time of flight is just double the maximum-height time. At maximum height, vy = 0. The time of flight is also determined solely by the initial velocity in the y direction and the acceleration due to gravity.
What is the acceleration of the ball at the top of its path?
The direction of the ball is, at first, upwards, then it reaches the top of its path and moves in a downward direction. The speed of the ball becomes less because of the downward pull of gravity. At the top of the ball’s motion its speed is 0. At the top of the ball’s motion its acceleration is downward at 9.8 m/s.