List of top Questions asked in CBSE Class X

"Ausable did not fit any description of a secret agent Fowler had ever read.” What do secret agents in books and films look like, in your opinion? Discuss in groups or in class some stories or movies featuring spies, detectives and secret agents, and compare their appearance with that of Ausable in this story. (You may mention characters from fiction in languages other than English. In English fiction you may have come across Sherlock Holmes, Hercule Poirot, or Miss Marple. Have you watched any movies featuring James Bond?)

Why did such a large number of international leaders attend the inauguration? What did it signify the triumph of?

Do you think there are also parents like Mrs. Pumphrey?

In a circle of radius 21 cm, an arc subtends an angle of 60° at the centre. Find: 
(i) the length of the arc (ii) area of the sector formed by the arc (iii) area of the segment formed by the corresponding chord

One-half of a convex lens is covered with a black paper. Will this lens produce a complete image of the object? Verify your answer experimentally. Explain your observations.

You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.

Draw a circle and two lines parallel to a given line such that one is a tangent and the other, a secant to the circle.

Why is a normal eye not able to see clearly the objects placed closer than 25 cm?

Do you think this is a real-life episode, or mere fiction? Or is it a mixture of both?

A spiral is made up of successive semicircles, with centres alternately at A and B, starting with centre at A, of radii 0.5 cm, 1.0 cm, 1.5 cm, 2.0 cm, .... as shown in Fig. 5.4. What is the total length of such a spiral made up of thirteen consecutive semicircles? (Take \(\pi = \frac {22}{7}\))

If the median of the distribution given below is 28.5, find the values of x and y.

Class interval	Frequency
0 - 10	5
10 - 20	x
20 - 30	20
30 - 40	15
40 - 50	y
50 - 60	5
Total	60

Who does Lencho have complete faith in? Which sentences in the story tell you this?

There are two kinds of conflict in the story: between humans and nature, and between humans themselves. How are these conflicts illustrated?

Are there people like Lencho in the real world? What kind of a person would you say he is? You may select appropriate words from the box to answer the question. greedy, naive, stupid, ungrateful,selfish, comical, unquestioning.

A chord of a circle of radius 15 cm subtends an angle of 60° at the centre. Find the areas of the corresponding minor and major segments of the circle. (Use \(\pi = 3.14\) and \(\sqrt3 = 1.73\))

What was Valli’s deepest desire? Find the words and phrases in the story that tell you this.

What guesses are made by Think–Tank about the books found on earth?

What does Anne write in her first essay?

What are the differences between the transport of materials in xylem and phloem?

In Fig. 10.13, XY and X'Y' are two parallel tangents to a circle with centre O and another tangent AB with point of contact C intersecting XY at A and X'Y' at B. Prove that ∠AOB = 90°.

How did Mandela’s ‘hunger for freedom’ change his life?

An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the power consumed will be –

Differentiate between metal and non-metal on the basis of their chemical properties.