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IIT JEE - Main - Physics

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)]}

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Asked by ROZR7122 17th August 2019, 7:34 PM
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IIT JEE - Main - Physics

How to solve pulley problems

Asked by prashant7632932731 17th August 2019, 4:15 PM
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IIT JEE - Main - Chemistry - Solutions

Sir while solving ,plz tell me each term of formula being applied here and the calculations .

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Asked by vishakhachandan026 16th August 2019, 7:47 PM
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IIT JEE - Main - Physics

Please solve the problem in the picture as soon as possible.... with  steps.

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Asked by miaowmira1900 16th August 2019, 1:35 AM
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IIT JEE - Main - Mathematics

the equation of director cicrle of the parabola y^2=10(x-1)

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IIT JEE - Main - Physics

Please solve the problem in the image immediately... provide the steps.

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Asked by miaowmira1900 15th August 2019, 5:39 PM
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IIT JEE - Main - Physics

WHICH OF THE FOLLOWING COMPONENT CAN REPLACE SWITCH IN A ELECTRICAL CIRCUIT FUNCIONALLY:? A)TRANSISTOR B)BATTERY C)RESISTOR D)WIRE

Asked by ROZR7122 14th August 2019, 3:59 PM
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JEE Plances - JEE (Main) - Mathematics

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Asked by g_archanasharma 16th December 2018, 6:20 PM
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Asked by g_archanasharma 16th December 2018, 6:19 PM
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Asked by g_archanasharma 16th December 2018, 6:18 PM
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JEE Plances - JEE (Main) - Mathematics

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Asked by g_archanasharma 16th December 2018, 6:11 PM
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Asked by g_archanasharma 16th December 2018, 6:09 PM
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JEE Plances - JEE (Main) - Mathematics

Sir pls solve this question.

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Asked by rsudipto 15th December 2018, 6:13 PM
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JEE Plances - JEE (Main) - Physics

2nd and 3rd

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Asked by StarBoy 15th December 2018, 2:25 PM
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JEE Plances - JEE (Main) - Mathematics

Sir in this question how is the inverse fn derived. Pls explain in details.

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Asked by rsudipto 15th December 2018, 8:55 AM
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JEE Plances - JEE (Main) - Mathematics

Sir pls solve this question.

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Asked by rsudipto 14th December 2018, 9:52 AM
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JEE Plances - JEE (Main) - Mathematics

Sir pls solve this question.

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Asked by rsudipto 14th December 2018, 9:51 AM
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