Page 141 - DECO401_MICROECONOMIC_THEORY_HINDI

bdkbZ 6 % ek¡x o ek¡x dh yksp osQ fl¼kar

ljy ek¡x oØ (Linear Demand Curve)μfp=k 6-19 esa MN ek¡x oØ ,d ljy js[kk gSA bl uksV
AN
ek¡x oØ osQ ‘A’ fcanq ij ek¡x dh yksp osQ cjkcj gksxh tks fd fuEufyf[kr fofèk }kjk Kkr dh tk
AM
ldrh gS tSlk fd ge tkurs gSa fd
P Δ Q
Ed = (–) ×
Q Δ P
fp=k 6-19 ls Kkr gksrk gS fd
P = OP (= AQ); Q = OQ (= AP);
ΔP = PP (= AB); ΔQ = QQ (= BC);
1 1
AQ BC
∴ E d = × ...(i)
AP AB
pw¡fd ΔABC rFkk ΔAQN le:i f=kHkqt (Similar triangles) gSa blfy, budh Hkqtkvksa (Sides)
BC QN
dk vuqikr cjkcj gksxkμvFkkZr~ =
AB AQ

BC QN
osQ LFkku ij lehdj.k (i) esa fy[kus ls gesa izkIr gksrk gS
AB AQ

AQ QN QN QN
E d = × = = (AP = OQ)
AP AQ AP OQ
pw¡fd ΔAQN rFkk ΔMPA le:i f=kHkqt gSa] blfy, budh Hkqtkvksa dk vuqikr cjkcj gksxkμ

QN QN AN fupyk Hkkx (Lower Segment)
Ed = = = = ——————————————
OQ AP AM mQij dk Hkkx (Upper Segment)

ljy js[kk osQ fofHkUu fcanqvksa ij dher yksp fp=k 6-20 ls Kkr gks tkrh gSA

fp=k 6-19

Y
M

Price (Rs.) P ΔP B A C
P

1
ΔQ
N
O X
Q Q
1
Quantity

(i) fcanq P ek¡x js[kk MN osQ eè; esa fLFkr gS blfy, PN (uhps dk Hkkx) rFkk PM (mQij dk Hkkx)
cjkcj gksaxsA vr%
PN
Ed = = 1 (Unity) vFkkZr~ P fcanq ij ek¡x dh yksp bdkbZ gksxhA
PM

LOVELY PROFESSIONAL UNIVERSITY 135