Ask a Teacher

Search

CBSE->Std 10 Questions

Total Questions 2595
what will be the increase in area of circle if its radius is increased by 40% ?
the volume of a largest sphere that can be cut from cylindrical log of wood of base radius 1 m and height 4 m is a) 8/3 * 22/7 cubic meter b) 10/3 * 22/7 cubic meter c) 16/3 * 22/7 cubic meter d) 4/3 * 22/7 cubic meter
How can a cactus store water in it's stem?
k^x^-2(k-1)x+4=0
state the positions of isotopes of the same element in the modern periodic table
three solid spheres of diameter 6cm,8cm,10cm are melted to form a single solid sphere.then what is the diameter of the new sphere?
three unbiased coins are tossed.what is the probability of getting at most two heads?
a cylinder ,a cone and a hemisphere are of the same base and of the same height.what will be the ratio of their volumes ?
on increasing each of the radius of the base and the height of a cone by 20%.its volume will be increased by : a)50% b)25% c)72.8% d)40%
state the positions of isotopes of the same element hydrogen in the modern periodic table
Why do we observe difference in colors of the sun during sunrise, sunset and noon?
Explain why variations are observed in the off springs of sexually reproducing organisms ?
Draw two possible isomers of the compound with molecular formula C3H6O and write their names
We do not clean ponds or lakes but an aquarium needs to be cleaned regularly. Explain
One portion of a convex lens is covered . Will the lens produce a complete image of the object? Describe in brief the characteristics of the image formed?
A building is in the form of a right circular cylinder surmounted by a hemispherical dome having the same base radii. The base diameter of the dome is equal to 2/3 of the total height of the building. Find the height if the building, if it contains 1408/21 cubic meter of air.
(k-12)x^+2(k-12)x+2 = 0. Find the value of k.
A star appears slightly higher(above)than its actual position in the sky.Illustrate it with the help of a diagram.
Write three main features of non-cooperation movement.
Difference between oils and fats.