ദൃശ്യപ്രകാശം സഞ്ചരിക്കുന്നത് ഏത് തരംഗങ്ങളായിട്ടാണ്?
Aഅനുപ്രസ്ഥ തരംഗം
Bഹ്രസ്വ തരംഗ
Cഅനുദൈർഘ്യ തരംഗം
Dദീർഘ തരംഗം
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Related Questions:
A boy focusses a sharp image of a distant object on a screen using a lens. The distance between the approximately equal to?
Choose the semiconductor from the following:
Which of the following types of images can be obtained on a screen?
- (a) Real and enlarged
- (b) Real and diminished
- (c) Virtual and enlarged
- (d) Virtual and diminished
Which of the following statements are correct?
- (a). For a lens the first principal focus is the position of the object whose image is at infinity
- (b) For a lens the first principal focus is the position of the object whose image is formed at twice the focal length.
- (c) For a lens the second principal focus is the position of the real image whose object is at infinity
- (d) For a lens the second principal focus is the position of the object whose image is formed at twice the focal length
How many times a half moon is visible in a month?