JAM Question Paper 2019-20 PH (Physics).
JAM PH – Physics 2019-20 Question Paper test papers will be fully objective type. This JAM PH – Physics 2019-20 Question will help all the students for their exam preparation, here the question type is MCQ i.e multiple choice question answers, if this JAM PH – Physics 2019-20 question paper in pdf file for IIT JAM PH – Physics you can download it in FREE, if Joint Entrance Examination (JAM) 2019-20 paper in text for JAM you can download JAM 2019-20 page also just Go to menu bar, Click on File->then Save.
JAM Question Paper 2019-20 PH (Physics)
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01. A collimated beam of light of diameter 1 mm is propagating along the x-axis. The beam is to be expanded to a collimated beam of diameter 10 mm using a combination of two convex lenses. A lens of local focal length of 50 mm and another lens with focal length F are to be kept at a distance d between them. The values of F and d respectively, are
- (A) 450 mm and 10 mm
- (B) 400 mm and 500 mm
- (C) 550 mm and 600 mm
- (D) 500 mm and 550 mm
02. Octal equivalent of decimal number 47810 is
- (A) 7368
- (B) 6738
- (C) 6378
- (D) 3678
03. In a photoelectric effect experiment, ultraviolet light of wavelength 320 nm falls on the photocathode with work function of 2.1 eV. The stopping potential should be close to
- (A) 1.8 V
- (B) 1.6 V
- (C) 2.2 V
- (D) 2.4 V
04. To operate a npn transistor in active region, its emitter-base and collector-base junction respectively, should be
- (A) forward biased and reversed biased
- (B) forward biased and forward biased
- (C) reversed biased and forward biased
- (D) reversed biased and reversed biased
05. A solid metallic cube of heat capacity S is at temperature 300 K. It is brought in contact with a reservoir at 600 K. If the heat transfer takes place only between the reservoir and the cube, the entropy change of the universe after reaching the thermal equilibrium is
- (A) 0.69 S
- (B) 0.54 S
- (C) 0.27 S
- (D) 0.19 S
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