The radius of curvature of a concave mirror is 30 cm. Following Cartesian Sign Convention, its focal length is expressed as
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A hollow hemispherical bowl is made of silver with its outer radius 8 cm and inner radius 4 cm respectively. The bowl is melted to form a solid right circular cone of radius 8 cm. The height of the cone formed is
A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area?
Who invented Helicopter?
Which of the following is India's highest civilian award?
The first Europeans to come to India were
Which nation won the highest number of medals at 2016 Rio Olympics?
Which of the following does not fall into the functions ofPayments Banks?
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