Question
Which of the following phenomena cannot be explained by
the wave theory of light?Solution
The photoelectric effect cannot be explained by the wave theory of light. The wave theory fails to account for the observation that light, below a certain frequency, does not eject electrons from a metal surface, regardless of its intensity. The phenomenon is explained by Einstein using the particle nature of light, which is described by the quantum theory.
Scientific name of grape is:
Root secrete weak organic acids which attack the rocks and start to dissolve away the softer parts areÂ
Which of the following statements is/are true?
Statement A: Mica and biotite are the secondary minerals but also act as primary minerals.
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The time of discharge of eggs from the Graffian follicles (Ovulation) in cow is about ___ hours after the end of 18 hours estrus.
‘Khaira disease’ (also known as iron rust) of rice is caused due to:
Chromosomal aberration in which two breaks occur in a chromosome and the intercalary segment reunites in a reverse order is categorised as
Imaginary lines connecting points of equal amount of rainfall are called asÂ
The first sign of germination of the seeds isÂ
Which among the following is not a seed quality analysis?
The trade name of the insecticide Imidacloprid is:
