Life Process- Important Points To Remember Que What are the autotrophic nutrition Ans Intake of simple inorganic materials from the environment and using an external energy source like the sun to synthesise complex high-energy organic material is called autotrophic nutrition Que What is heterotrophi...
Control and Coordination Que - Why pituitary gland is called master gland ? Ans - Pituitary gland is called master gland because it controls and coordinates secretion of all other glands Que -What is stimulus? Ans - Something that brings about a response in an organism is called stimulus Que - What ...
Acid Base Que 1 What are acid base indicators? Ans Acid base indicators are mixture of dyes which are used to indicate the presence of acids and bases Que 2 What are properties of acid Ans Acids are sour in taste Acid change the colour of blue litmus to red Whenever acids are dissolved in water they...
Reflection and Refraction of Light Que - Define focus . If the radius of curvature of mirror is 20 cm find its focal length Que - Define power of lens ? what is its unit? Find the power of lens having focal length 2 m and focal length 50 cm Que -- What is refractive index ? what is its unit ? If ref...
Periodic Classification of Periodic Table Periodic Classification of Compounds and Trends Important questions Que 1 How many elements are known to us Ans 118 elements are known to us and which 94 are naturally occurring Que 2 What is Dobereiner's Traids Ans In 1817 scientist Dobereiner arrange the e...