Fill in any four of the blanks in the sentences given below choosing the most

appropriate options from the ones that follow. Write the answers in your answer-sheet

against the correct blank numbers : 1 × 4 = 4

(A) Concentration is (a) __________ by alertness.

(B) Effective speaking (b) __________ on effective listening.

(C) Economic growth (c) __________ attitudes and lifestyle.

(D) The environment has always (d) __________ in control of our destiny.

(E) They believe that logic (e) __________ no place in faith.

(a) (i) help (ii) will help (iii) helps (iv) helped

(b) (i) depends (ii) depend (iii) depended (iv) depending

(c) (i) change (ii) will change (iii) changes (iv) changed

(d) (i) is (ii) be (iii) been (iv) was

(e) (i) has (ii) have (iii) had (iv) having

(a)With the proper diagram, explain the movement of charge carriers through different parts of the transistor and hence show that I_E = I_B + I_C.

(b) Identify the logic operation carried out by the circuit shown below and write its truth table.

OR

Draw a circuit diagram to study the input and output characteristics of an n-p-n transistor in its common emitter configuration.

Draw the typical input and output characteristics and explain how these graphs are used to calculate current amplification factor of the transistor.

Fill in any four of the blanks in the paragraph given below with the help of options that follow :

The modern student (a) the importance (b) physical exercise. He spends one to two hours in open air (c) he takes part in different sports. However, care should (d) not to overstrain (e) body.

(a) (i) understood (ii) understand

(iii) have understand (iv) understands

(b) (i) of (ii) by (iii) from (iv) with

(c) (i) how (ii) which (iii) where (iv) why

(d) (i) be taken (ii) took (iii) takes (iv) has taken

(e) (i) a (ii) an (iii) the (iv) some

Rearrange any four of the following word clusters to make meaningful sentences :

(a) very exciting / can be / new country / travelling to / a

(b) it / a lot of / before / actually requires / the visit / preparation

(c) option / is / light / travelling / best / the

(d) also need / we / the local weather / in mind / to / keep

(e) always / enriched / we / return / experience / the / with

Answer the following in 100-200 words :

“Patol Babu, Film Star,” by Satyajit Ray emphasizes the valuable contribution of a mentor in changing a negative mind-set into a positive one. Describe how Mr. Pakrashi’s advice helps Patol Babu in performing his role.

OR

Time humbles even the greatest of the great. One should cultivate the quality of humility. Describe how time has reduced the mighty Ozymandias to nothing.