Which of the following statements is FALSE for a converging lens?
The bright spot formed on the paper by the converging lens is a virtual image of the Sun.
Sunlight reaching the Earth comes from a very distant source, so the rays falling on the lens are effectively parallel.
A converging lens brings those parallel rays to a point at its focus, and the light actually meets there, so the bright spot on the paper is a real image of the Sun, not a virtual one - this statement is therefore false.
The remaining statements are true: the lens does focus sunlight to a sharp bright spot, and the concentration of energy at that point produces enough heat to char paper.
Hence, the answer is that the bright spot formed on the paper by the converging lens is a virtual image of the Sun.
Similar Questions
A ray of light enters a rectangular glass slab from air at an angle of 40 degrees to the normal. If the refractive index of glass with respect to air is 1.5 and the velocity of light in air is \(3 \times 10^{8}\) m/s, what is the velocity of light inside the glass slab?
What happens when white light passes through a glass prism?
A ray passing through the principal focus of a concave mirror will, after reflection:
A traffic surveillance camera uses a convex mirror with a radius of curvature of 2 m. Where will the image of a car located 3 m from the mirror appear?
During an experiment, a student places a candle beyond twice the focal length of a convex lens and records the image position and nature. Which of the following scenarios could result from this setup?
A student places an object 15 cm in front of a concave mirror of focal length 10 cm. If the image formed is real, what is the magnification produced by the mirror?
How does the size of atmospheric particles affect the scattering of sunlight?
Why does white light split into different colours when passing through a prism but not when passing through a glass slab?
A student observes a pencil half-immersed in water (refractive index 1.33) and notices the apparent bending is less than when the pencil is in a liquid with refractive index 1.5. What does this suggest about the relationship between refractive index and light bending?
If an image is formed three times the size of the object and is inverted, what is the possible position of the object with respect to a concave mirror of focal length 10 cm?
Important Questions from Refraction and Reflection
- How can you identify a concave and a convex mirror based on the direction of their reflecting surfaces?
- Stars appear to twinkle in the night sky because ______.
What type of image is always formed by a concave lens, no matter where the object is placed?
- Which of the following is NOT caused by atmospheric refraction?
- According to the sign convention, the height of an erect image formed by a mirror is taken as:
