All India Engineering / Architecture Entrance Examination (AIEEE)

CBSE Guess > AIEEE > AIEEE Papers > 2009 > Physics

AIEEE 2009 Physics

Q.15.   A p-n junction (D) shown in the figure can act as a rectifier. An alternating current source (V) is connected in the circuit. The current (I) in the resistor (R) can be shown by

Sol.: Current will flow when diode is forward biased.

Answer: (4)

Q.16. A motor cycle starts from rest and accelerates along a straight path at 2 m/s². At the starting point of the motor cycle there is a stationary electric siren. How far has the motor cycle gone when the driver hears the frequency of the siren at 94% of its value when the motor cycle was at rest? (Speed of sound = 330 ms^–1)

1. 196 m
   
   
2. 49 m
   
   
3. 98 m
   
   
4.  147 m

Sol:    

Answer: (3)

Warning: include(../../ads_330x250_middle.php): Failed to open stream: No such file or directory in /home/cbseguess/public_html/aieee/papers/2009_physics6.php on line 63

Warning: include(): Failed opening '../../ads_330x250_middle.php' for inclusion (include_path='.:/opt/cpanel/ea-php83/root/usr/share/pear') in /home/cbseguess/public_html/aieee/papers/2009_physics6.php on line 63