A convex lens has a focal length of 20cm
Asked by admin @ in Physics viewed by 291 People
a convex lens has a focal length of 20cm. calculate at what distance from the lens should be an object placed so that it forms an image at a distance of 40cm
Answered by admin @
Answer:
the answer is 40 cm infront of the lens.
please mark this answer as the brainliest..
Similar Questions
A convex lens of focal length 25 cm
Asked by admin @ in Physics viewed by 320 persons
A convex lens of focal length 25cm and a concave lens of focal length 10cm are placed in close contact with each other. Calculate the lens power of this combination.
Two plano convex lens each of focal length 10cm
Asked by admin @ in Physics viewed by 330 persons
Two plano convex lenses each of focal length 10cm and refractive index 3/2 are placed as shown in the future. in the space left, water (r.i=4/3) is filled. the whole …
A convex mirror has a focal length of 20cm
Asked by admin @ in Science viewed by 318 persons
a convex mirror has a focal length of 20cm find the position of object for which image will be half of the size of the object
A convex lens has a focal length of 10cm
Asked by admin @ in Physics viewed by 274 persons
a convex lens has focal length 10 cm. at what distance from the lens should the object be placed so that it forms a real and inverted image 20cm away …
Power of convex lens of focal length 50 cm is
Asked by admin @ in Physics viewed by 357 persons
The focal length of a convex lens is 50 cm. what is its power?
Focal length of convex lens is maximum for which colour
Asked by admin @ in Physics viewed by 293 persons
For convex lens focal length will be maximum for which colour
A convex lens has 20 cm focal length in air
Asked by admin @ in Physics viewed by 286 persons
A convex lens has 20 cm focal length in air. What is its focal length in water? (Refractive index of air-water = 1.33, refractive index of air-glass = 1.5).
The focal length of a converging lens is 20cm
Asked by admin @ in Physics viewed by 269 persons
The focal length of a converging lens is 20cm. An object is 60cm from the lens. Where will be the image is formed. write the nature of the image
A concave lens has a focal length of 20cm
Asked by admin @ in Physics viewed by 328 persons
A concave lens has focal length of 20 cm. At what distance from the lens should a 5 cm tall object be placed so that it forms an image at …
Power of lens is its focal length is
Asked by admin @ in Physics viewed by 315 persons
Power of the lens is -4d, then its focal length is -----?
A concave lens of focal length 15 cm
Asked by admin @ in Physics viewed by 337 persons
a concave lens of focal length 15 cm forms an image 10cm from the lens. how far is the object placed from the lens draw the ray diagram
Find the focal length of lens of power 2d
Asked by admin @ in Science viewed by 322 persons
Find the focal length of a lens of power , -2 D .what type of lens is this ??answer fast...
A biconvex lens has focal length 2 3 times
Asked by admin @ in Physics viewed by 320 persons
A bi convex lens has focal length 2/3 times radius of curvature of either surface calculate refractive index of the lens material
A student uses a lens of focal length 40cm
Asked by admin @ in Science viewed by 333 persons
A student uses a lens of focal length 40cm and another of -20cm. Write the nature and power of each lens.
The focal length of eye lens is controlled by
Asked by admin @ in Biology viewed by 300 persons
Which muscles control the focal length of the eye lens? give short answer?
Most viewed questions in Physics
Jeevandeep health and physical education std 10 answers pdf
Asked by admin @ in Physics viewed by 11070 persons
Hc verma physics class 9 solutions of describing motion
Asked by admin @ in Physics viewed by 2668 persons
Base area and stability of some objects with different shapes
Asked by admin @ in Physics viewed by 1532 persons
Which of the following statements about safe lifting are correct
Asked by admin @ in Physics viewed by 1514 persons
A rocket of mass m is launched straight up with thrust f⃗ thrust.
Asked by maham237 @ in Physics viewed by 1314 persons
A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is
Asked by maham237 @ in Physics viewed by 1204 persons
Mind map for light reflection and refraction class 10
Asked by admin @ in Physics viewed by 1147 persons
The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.
Asked by maham237 @ in Physics viewed by 1099 persons
A 5.8 x 10 4 watt elevator motor can lift
Asked by maham237 @ in Physics viewed by 1080 persons