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NDA/CDS/AFCAT -HEIGHT AND DISTANCES -1
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HEIGHT AND DISTANCE -1

Arpit Chaudhry is teaching live on Unacademy Plus

Arpit Chaudhry
Mentor for defence aspirants YouTube Channel with 123000 subscribers Recommended 3 times

U
Unacademy user
Good morning sir G...
sir vo ship wale question Mai 30 and 45 degree wale Mai d+50=50√3 ko apne kaise d=50(√3-1) likha ye step nhi smjha
IS
sir mere 10th aur 12th main 2 SAAL ka gap ho gya h recent because mujhe class repeat krni pd rhi h toh kya main select ho skta hu
bhaiya can you make a video for 12. class student. who are preparing for NDA and boards both
MR
Very nice job sir......
JS
Sir thanks for free of cost coaching. You doing a great JobSir .
  1. HE IGHT & OIS TANCES 1) ANGLE OF ELEVATION WHEN WE VIEW AW o ECT THE LINE OF SIGHT OR LINE OF viSIoN IS A STRAIGHT LINE FRom THE OBTECT WE ARE VIEWING IF THE OBJECT 1s ABOVE THE TAL FRom THE EYE MEANS IT Is AT HIGHER LEUEL THAN OUR EYES THEN O8 vioUSLy, WE HAVE To IFT UP OUR HEAD TOUIEW THE ORTECT. IN OUR EYE MOVES TH ROUGH AN ANGLE THIS PRoCESS THIS ANGLE 1S CALIED ANGLE OF ELEVAIOn OBTEC7 OF ELEVATI ON


  2. IF THE OBJECT ISATA LOWER LE VEL THEN WE HAVE TO TURN OUR HEAD DOWN 10 VIEW THE OBJECT-INTHS PROCESS DUR EYES MoVES THROUGH AIN ANGLE IN 0owN WARD DIRECTIoN. THIS AN6LE IS CALLED ANGLE OF DEPRESSION OF THE OBTECT ANGLE OF OEPRESSion OBJECT


  3. Q A TOWER STANOS VERTICALLY ON THE GRoUND. ATTHE PoINT ON THE GRoUNO 20m AwAY FRom THE FoOT OF TowEA THE ANGLE OF ELE VATION oF THE ToP oF ToWER S 45 WHAT IS THE HEIGHT OF TowER WE KNO W, 4S 2 0


  4. THE ANGLE OF ELEVAT ON OF Top OF A TOWER FRO A POINT ON THE GRoUND IS 30. AFTER WA LtN 5m TowARDS THE TOWER THE AWGLE OF ELEVATIon IS G. , FIND THE HEIGHT OF TOWER 30 4S -O V3 c+IS


  5. 3 3- 75x2 73 20 47m


  6. Q. As oBSERVED FRom THE ToP oF 5om TALL LIGHT HoUSE, THE ANGLE OF DEPRESSION OF Two SHIPS APPROACHIvG IT ARE 3o'R 5. . IFoNE SHP IS DIRECTLY BEHIND THE OTHER FIND THE OISTANCE BETWEEN THETwo SHIPS IN FIG. A& LIGHTHOUSE WHICH IS OF 50m LET D IS A DISTANCE /w Two SHPS TAN 45%a 4S


  7. 50 =TAN30 TX So N3 d 5o(173 2-1)