Question
Solution
'आवश्यक' का विलोम 'अनावश्यक' है, जिसका अर्थ होता है जो जरूरी न हो।
Sound and light waves both have ___________ .
The energy possessed by a body due to its position or shape is known as:
What is the pH of Urine ?
Photovoltaic cells are:
What Type of Mirror Is Commonly Used as Rear-View Mirrors in Vehicles?
What type of image is always formed by a convex mirror?
Heat stored in water vapour is –
Which medium cannot propagate sound waves?
Who discovered the electron?
Why does a solid chunk of iron float in mercury but sink in water?