A soap bubble shows colours when illuminated with white light. This is due to –
The iridescent colours of soap bubbles are caused by interfering of (internally and externally) reflected light waves and are determined by the thickness of the film. This phenomenon is not the same as the origin of rainbow colours (caused by the refraction of internally reflected light), but rather are the same as the phenomenon causing the colours in an oil slick on a wet road.
Which of the following is best suited as catch crop?
Model plants concept given by Donald is known as
Objectionable weed in wheat field is _____
Growing of two or more crops simultaneously intermingled without any specific row pattern is known as:
Dihybrid ratio 9:3:3:1 in F2 results due to independent assortment of :
Which variety of rice is tolerant to iron toxicity
ICAR- Indian Institute of Rice Research is situated at
Which of the following Scientist discovered the element Potassium?
Family of sesame is
Mango Is an example of