H $ $ ‡ H $`

DARK ROOM PROCEDURESS>mH©$Í$_ ‡{H´$`mE±(433)Time : 3 Hours ] [ Max i mum Marks : 50g_` : 3 K Q>o ] [ nyUmH$ : 50Note :{ZX}e :All questions are compulsory and carry marks as indicated against each question.g^r ‡ÌZ A{Zdm`© h¢ Am°a ‡À`oH$ ‡ÌZ Ho$ AßH$ gm_Zo {X`o J`o h¢ü&1. Describe the characteristic curve of a film in detail with the help of a diagram. 8{Mà H$s ghm`Vm go {\$Î_ Ho$ {deof H$d© H$s {dÒVma go Ï`mª`m H$s{OEü&2. Describe a darkroom safelight lamp. How is safety of safelight tested? 8EH$ S>mH©$Í$_ gwa{jV ‡H$me b°Ân H$m dU©Z H$s{OEü& gwa{jV ‡H$me H$s gwajm-j_Vm H$m narjU {H$g ‡H$ma{H$`m OmVm h°?3. What are the various components of an X-ray film? 8Eäg-ao {\$Î_ Ho$ {d{^fi Ad`d ä`m h°ßü?4. How are screens useful in radiography? 8ao{S>`moJ´m\$s _| ÒH´$sZ H$m ä`m _hŒd h°?5. What is image unsharpness? How does it affect radiographic quality? 8‡{V{~Â~ H$s AVrd´Vm ä`m h°? `h ao{S>`moJ´m{\$H$ π$m{bQ>r H$mo {H$g Vah ‡^m{dV H$aVr h°?6. Describe in brief : 2×5=10gßjon _oß dU©Z H$s{OE :(a)Radiographic contrastao{S>`moJ´m{\$H$ d°fÂ`433/VOC/923 3 [ P.T.O.

(b)(c)(d)(e)Motion sharpness_moeZ H$s Vrd´VmDental filmX›V {\$Î_Age fogEO \$m∞JType of screensÒH´$sZ Ho$ ‡H$ma433/VOC/923 4 10V—600