JEE Class main Answered
1) WHY SPACECRAFT HAVE NO WINGS?
A)WINGS ARE REMOVED FROM SPACE ROCKET TO REDUCE WEIGHT
B)WINGS STABILIZES THE AIRCRAFT IN VARIOUS AIR DRAG
C)WINGS PROVIDE MORE MOMENTUM BY ITS WEIGHT TO FACE AIR DRAG
2)A micro controller worrks as a small brain which can directed by computer codes .RAM has developed a microcontroller which has 8 pins as shown in figure.(please refer image).Corresponding codes are given in the table( also refer image).Black pin always give voltage = 0 V and white pin always provide-5 V :: Controlelr read the instructions from up to down .Sample code for running a motor:QUESTION-which of the following is correct FOR BLINKING OF LED?"
A) forever {
PM (purple,OUT)
PM(yellow,IN)
DW(purple,0)
DW(yellow,1)
wait(1)
DW(purple,1)
DW(yellow,0)
wait(1)}
B) forever {
PM (purple,OUT)
PM(yellow,OUT)
DW(purple,0)
DW(yellow,1)
wait(1)
DW(purple,0)
DW(yellow,0)
wait(1)}
C)forever {
PM (purple,OUT)
PM(yellow,IN)
DW(purple,0)
DW(yellow,1)
wait(1)
DW(purple,1)
DW(yellow,1)
wait(1)}
D)
) forever {
PM (purple,OUT)
DW(yellow,0)
DW(purple,1)
PM(yellow,OUT)
wait(1)
DW(purple,1)
DW(yellow,1)
wait(1)}
3)A micro controller worrks as a small brain which can directed by computer codes .RAM has developed a microcontroller which has 8 pins as shown in figure.(please refer image).Corresponding codes are given in the table( also refer image).Black pin always give voltage = 0 V and white pin always provide-5 V :: Controlelr read the instructions from up to down .Sample code for running a motor:QUESTION-IR sensor gives the value HIGH if an object comes infront of it while LOW when nothing is there.RAM is applying IR to make a parking indicator .The project is to make LED glow when a car is there while on the other hand it would not glow.WHICH OF THE FOLLOWING CODE IS CORRECT FOR THIS PURPOSE?"
a)forever{
if (DR (pink)is HIGH)[
PM(purple,OUT)
DW(purple,1)}
else[
DW(purple,0)]}
B)forever{
PM(pink,IN)
PM(purple,OUT)
if(pink is HIGH)
DW(purple,1)}
else[
DW(purple,0)]}
C)
forever{
PM(pink,IN)
PM(purple,OUT)
if (DR (pink)is LOW[
DW(purple,1)}
else[
DW(purple,0)]}
D)
forever{
PM(purple,OUT)
PM(pink,IN)
if (DR (pink)is HIGH[
DW(purple,1)}
else[
DW(purple,0)]}
Asked by ROZR7122 | 17 Aug, 2019, 07:34: PM
Expert Answer
Click on the link given below for the answer:
For the 1st question click on the link below and check the second point of the answer:
Click on the link below for the answer to the 3rd question:
Check the 3rd point for the answer:
Answered by Shiwani Sawant | 17 Aug, 2019, 10:20: PM
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