List of top Questions asked in CBSE CLASS XII

Find the equation of a curve passing through the point \((0,-2)\) given that at any point \((x,y)\) on the curve,the product of the slope of its tangent and y-coordinate of the point is equal to the x-coordinate of the point.

Find the equation of a curve passing through the point \((0,2)\) given that the sum of the coordinates of any point on the curve exceeds the magnitude of the slope of the tangent to the curve at that point by 5.

For the differential equations, find a particular solution satisfying the given condition:\(cos(\frac{dy}{dx})=α(α∈R);y=1\) when x=0

For the differential equations, find the general solution: \(x^5\frac{dy}{dx}=-y^5\)

For the differential equations , find the general solution:\(\frac {dy}{dx}+y=1, \ \ (y≠1)\)

For the differential equations, find the general solution:\(\frac{dy}{dx}=\frac{1-cosx}{1+cosx}\)

The photoelectric cut-off voltage in a certain experiment is 1.5 V. What is the maximum kinetic energy of photoelectrons emitted?

The work function of caesium metal is \(2.14 eV\). When light of frequency \(6×1014Hz\) is incident on the metal surface,photoemission of electrons occurs. What is the
(a)maximum kinetic energy of the emitted electrons, 
(b)Stopping potential, and
(c)maximum speed of the emitted photoelectrons?

Compare the stability of +2 oxidation state for the elements of the first transition series

What is the 'sadness' that the poet refers to in the poem?

What does the title of the poem suggest to you? What do you think the poem is about?

Why has the poet brought in the image of the merry children 'spilling out of their homes'?

What do you understand about the author’s literary inclinations from the account?

How does the author describe the incongruity of an English poet addressing the audience at Gemini Studios ?

Notice the sentences in the text which are in ‘direct speech’. Why does the author use quotations in his narration?

How do we know that ordinary people too contributed to the freedom movement?

Verify that the given functions (explicit or implicit) is a solution of the corresponding differential equation: y-cos y=x :(ysin y+cosy+x)y'=y

Verify that the given functions (explicit or implicit) is a solution of the corresponding differential equation: xy = log y+C : y'= \(\frac{y^2}{1-xy}\,(xy\neq 1)\)

Why do you think the zygote is dormant for sometime in a fertilized ovule?

If someone else had narrated Douglas’ experience, how would it have differed from this account? Write out a sample paragraph or paragraphs from this text from the point of view of a third person or observer to find out which style of narration would you consider to be more effective? Why?

How does Douglas make clear to the reader the sense of panic that gripped him as he almost drowned? Describe the details that have made the description vivid.