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Subject: Physics, asked on 18/5/18

Solve the question showing all the steps:

5. If value of acceleration due to gravity at a place decreases by 3% then find the Change in the height of mercury in a barometer at that place. 
 

Subject: Physics, asked on 25/4/18

List the formulas from Physics class 11th & 12th for competitive exams!!

Subject: Physics, asked on 18/4/18

Please answer 58th question

Subject: Physics, asked on 17/4/18

​consider two samples of ideal gases in two separate containers. if it is given that both samples have same temperature and no other information is available, what can be concluded?
a. both samples must have same rms speed of molecules
b. both samples must have same average kinetic energy per molecule
c. both samples must have same translatory kinetic energy per molecule
d. both samples must have same rotatory kinetic energy per molecule

Subject: Physics, asked on 13/4/18


Q. Two resistance are measured in ohm and is given as:- 

R1=3Ω±1%R2=63Ω±2%
When they are connected in parallel, the percentage error in equivalent resistance is
  1. 3%
  2. 4.5%
  3. 0.67%
  4. 1.33%

Subject: Physics, asked on 16/3/18

No links please
Q. Give the names of the components in communication system.
 

Subject: Physics, asked on 5/3/18

what is the difference between muf and cf in communication

Subject: Physics, asked on 5/3/18

A mobile phone user gets an 'uninterupted link to talk' while walking.Give Reason.(plzz answer quick)

Subject: Physics, asked on 5/3/18

Dear experts 23rd one. No links pls
Problem 23. Explain, using a proper diagram the mode of propagation used in the frequency range above 40 MHz.

Subject: Physics, asked on 5/3/18

Solve this plzzz..
Q. The maximum amplitude of carrier wave is 3 V. What should be the amplitude of modulating signal order to have a modulation index of 80 % ?
(A) 9 V
(B) 4.2 V
(C) 2.4 V
(D) 24 V
 

Subject: Physics, asked on 2/3/18

Discuss the mode pf space wave propagation(Los or satellite) for the given frequencies-40Mhz,greater than 49Mhz. No links

Subject: Physics, asked on 2/3/18

Question 2

Subject: Physics, asked on 2/3/18

Dear experts assign the mode of communication for the given frequencies 30Mhz,40Mhz,above 40Mhz

Subject: Physics, asked on 28/2/18

​how to draw the pattern of amplitude modulated wave for given modulating signal and high frequency carrier wave if modulation index is 1) 50% 2) 100% 3) 150% 4)25%  

Subject: Physics, asked on 28/2/18

Dear experts we know that LOS (line of straight communication) limited to frequency above 40Mhz. Does it mean LOS method can be used upto 40Mhz?

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