If the thickness of a hermispherical bowl is 12 cm and its outer diameter is 10.24 m, then find the inner surface area of the hemisphere. (Take `pi=3.14`).
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Inside a cylindrical capacitor of inner radius a and outer radius b, an electron is projected from the surface of inner cylindrical shell perpendicula
Correct Answer - `[(eB (b^(2) - a^(2)))/(2 mb)]`
2 Answers 6 views
A plano convex lens `(mu=1.5)` has a maximum thickness of `1mm` .If diameter of its aperture `4cm` Find (i)Radius of curvature of curved surface (ii)
Correct Answer - (a) 20 cm; (b) 40 cm
2 Answers 1 views
Find the resistance of a hollow cylindrical conductor of length 1.0m and inner and outer radii 1.0mm and 2.0mm respectively. The resistivity of the ma
Correct Answer - `2.1xx10^(-3) Omega`
2 Answers 1 views
Inner part of cerebral hemisphere, which is involved in sexual behaviour, motivation expression of emotional reactions etc. and a group of associated
Correct Answer - Lumbic system
2 Answers 1 views
If the difference between the outer radius and the inner radius of a ring is 14 cm, then what is the difference between is outer circumference and inn
Correct Answer - 88 cm
2 Answers 1 views
If R and r are the external and the internal radii of a hemispherical bowl, then what is the area of the ring, which forms the edge of the bowl (in sq
Correct Answer - `pi(R^(2)-r^(2))`
2 Answers 1 views
An open metallic conical tank is 6 m deep and itscircular top has diameter of 16 m. Find the cost oftin plating its inner surface at the rate of 0.8 p
Correct Answer - Rs. 20096
2 Answers 2 views
A patient in a hospital is given soup daily in a cylindrical bowl of diameter 7 cm. If the bowl is filled with soup to a height of 4 cm, how much soup
Correct Answer - 38.5 litres
2 Answers 1 views
The total surface area of solid cylinder is `231 cm^(2)` and its curved surface area is `(2)/(3)` of the total surface area. Find the volume of the cy
Correct Answer - `269.5 cm^(3)`
2 Answers 1 views
The ratio between the curved surface area and the total right circular cylinder is `1 : 2`. Find the volume of the cylinder if its total surface area
Correct Answer - `1078 cm^(3)`
2 Answers 1 views