लेंस की क्षमता मापी जाती है -
The capacity/power of a lens is measured in -
Collection of verified questions for Prakash under General Science. Includes previous year exam questions with official answer keys and step-by-step solutions.
The capacity/power of a lens is measured in -
Where is the image of an object formed in the human eye?
The number of colours in sunlight is -
The power of a lens is measured in -
The image of an object is formed in the human eye at -
What is the minimum distance of clear vision for normal eyes?
Consider the following phenomena - 1. Size of the Sun at dusk 2. Colour of the Sun at dawn 3. Moon being visible at dawn 4. Twinkling of stars in the sky 5. Polestar being visible in the sky Which of the above are optical illusions?
The minimum distance of distinct vision for a normal healthy human eye is considered to be -
What are the primary colors by which various colors are displayed on a TV screen?
Which combination of aperture and shutter speed of a camera allows the maximum exposure?
The power of sunglasses is -
The least distance of distinct vision is (in cm) -
In a colour television, colours are produced by combining three basic colours, which are -
The mirror used in a search light is -
Identify the odd one out among the following colours -
If the power of an eyeglass lens is +2 dioptres, its focal length will be -
Which of the following is not a primary colour?
When beams of red, blue, and green light coincide at the same spot, the resulting colour of light is -
Three colors are primary colors. These are -
The retina of the human eye can be compared to which part of a conventional camera?
The colour of an opaque object is due to the colour which it -
Two glass lenses of equal focal length, one convex and the other concave, are kept in contact with each other. This combination will behave as a -
The part of the human eye on which the image of an object is formed is -
The focal length of the eye lens is altered by the action of the -
Human eyes form an image of an object on the -