Question
What are sodium benzoate and sodium metabisulphite most
commonly used as?ÂSolution
Sodium benzoate and sodium metabisulphite are widely used as food preservatives to prevent spoilage and extend the shelf life of products like jams, squashes, and other processed foods. Sodium metabisulphite is also utilized in photography and as an active ingredient in paracetamol tablets.Â
A concave lens has a focal length 15 cm. If the object is placed at 30 cm from the lens, what is the image distance?
The device used for locating submerged objects under sea is –
Which pioneer of the late 19th century is credited with using radio waves for signal transmission over several kilometers?
Cell was discovered by
Which atmospheric layer contains ozone layer?
Minimum Distance for proper vision isÂ
Pulsars are :
Heat stored in water vapour is –
How does an earphone convert electrical signals into sound?
With reference to the types of electromagnetic waves, consider the following statements:
(I) Radio waves have the highest wavelength range among ...
Relevant for Exams:
