I want to know about Suitable Stream in 11th grade to Join ISRO as an Astronaut or scientist post ?

You have to choose physics, chemistry and mathematics subjects in class 11th to become astronaut in Indian space research organization .. to become an astronaut you have to passed 12th with PCM subject and obtained good marks .

Than you have to go for B tech or Bachelor’s degree in biological science, engineering, mathematics or physical science from a well recognized university.

After passing graduation you can appear for the entrance exam held by the NASA for the recruitment of Scientists, Astronauts etc. . or you can apply for scientist jobs offer by ISRO.

Minimum Eligibility for ISRO is: -
You have to passed B.E. or B.Tech or equivalent degree in Electronics & Communication Engg. or Mechanical Engg. or Computer Science Engg. or Chemical Engg. or Electrical Engg. From a well recognized university and you must obtained a minimum of 60% aggregate marks from a recognized Institute / University.

Nationality – Indian
Age - 21 Years to 30 Years

ISRO SAMPLE TEST/Previous PAPER ON for SCIENTISTS/ENGINEERS
1. If sampling frequency doubles then
a) Quantization noise decreases
b) Quantization density decreases
c) Quantization noise increases
d) Quantization density increases

2. Two signals of 2GHz and 4GHz are frequency modulated on same carrier 10
GHz. Find the ratio of frequency deviation if band widths of both are equal.

a ) 1:2 b)2:1 c) 1:1 d) 1:4

3. Gray code of 111 is

4. 3X512+7X64+5X8+3 then value in binary form contains _______ number of 1?s.
a) 7 b) 6 c) 9 d) none

5. The 2?s compliment of decimal number 19 in 8-bit system is

6) The high gain codes are
a) Turbo codes b) BCH codes c) R-S codes

7) BCH codes are of the type________
a) Convolutional type b) c)
8) Time constant of LC circuit is
a) L/R b) L/R2 c) RL

9) If R is doubled and C is halved then frequency of series RLC circuit is

10) The solution for the equation (D2+4) y=sin2x