HSC Science (Electronics) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions

Attributes used with <audio> tag __________

a) autoplay

b) href

c) controls

d) cntrl

e) loop

f) bgsound

A Function is a block of statements that can be used repeatedly in a program.

The ______ element creates an inline frame.

Srccode specifies the HTML content of the page to show in the <iframe>.

Attributes used with iframe are ______ 

1. srcdoc
2. name
3. att
4. src
5. href
6. loop

Encryption consist of two processes ______ and ______.

Describe process of encryption.

Write Programs for the following.

Write a PHP code which calculates square of any number using form.

Write Programs for the following.

Create a website with two PHP webpage in which each webpage is connected.

The first page of the website contains two form fields for taking 'name' and 'password' from users. On onclick event, details of forms should be displayed on second webpage.

Prove that:

`int_0^(2a)f(x)dx = int_0^af(x)dx + int_0^af(2a - x)dx`

If x^myⁿ = (x + y)^m+n, prove that \[\frac{dy}{dx} = \frac{y}{x} .\]

Apply the given elementary transformation of the following matrix.

A = `[(1,0),(-1,3)]`, R₁↔ R₂

Apply the given elementary transformation of the following matrix.

B = `[(1, -1, 3),(2, 5, 4)]`, R₁→ R₁ – R₂

Apply the given elementary transformation of the following matrix.

A = `[(5,4),(1,3)]`, C₁↔ C₂; B = `[(3,1),(4,5)]` R₁↔ R₂.
What do you observe?

Apply the given elementary transformation of the following matrix.

A = `[(1,2,-1),(0,1,3)]`, 2C₂

B = `[(1,0,2),(2,4,5)]`, −3R₁

Find the addition of the two new matrices.

Apply the given elementary transformation of the following matrix.

A = `[(1,-1,3),(2,1,0),(3,3,1)]`, 3R₃ and then C₃ + 2C₂

Apply the given elementary transformation of the following matrix.

A = `[(1,-1,3),(2,1,0),(3,3,1)]`, 3R₃ and then C₃ + 2C₂

and A = `[(1,-1,3),(2,1,0),(3,3,1)]`, C₃ + 2C₂ and then 3R₃
What do you conclude?

Apply the given elementary transformation of the following matrix.

Use suitable transformation on `[(1,2),(3,4)]` to convert it into an upper triangular matrix.