BSc Physics SEM IV ATKT 2018-19 ATKT Physics III Question Paper - Mumbai University | munotes

Questions asked in this paper

• (2) Figures to the right indicate maximum marks

1. Q1 A) Select correct answer 12 marks
   • (a) Are typically 8-10 km deep
   • (b) parallel the edges of continents and island arcs
   • (c) are narrow deep troughs (d) none of these 2 Unit of Measuring gravity anomaly is 3 The instruction for “ Do not perform any operation “ is : 4 The data in accumulator after the execution of the instruction ORI , FFh is
   • d)depends on the initial data in accumulator Which of the following is not a natural source of radiation? 6 bridge across a river lets only one lane of traffic pass at a time on either side. The transmission of traffic is Full Duplex d) all of the above
   • B) Answer in one sentence 1 Define Seismic waves 2 Name the register pairs in 8085 Microprocessor What is Thermo luminescence dosimeter? 3
   • C) Fill in the Blanks 1 The ratio of total magnetization induced to the intensity of magnetic field 2 is an instrument used for recording The functional category to which the instruction JNZ , 5600h belongs is 5 The of digital signal is the number of bits sent out by its transmitter in one second 5
2. Q2 A) Attempt any one 1 What is Geophysics? What are the different branches of Geophysics Explain any one of them in detail 2 What is Earth’s magnetic field? Explain inclination and declination angle with the help.of diagram 8 marks
   • B) Attempt any one do you mean by “Environmental Geomagnetism “? Discuss analysis of Environmental Impacts on Magnetic Materials 2 What is Urbanization? Discuss impact of urbanization and disposal of Industrial Waste on Environment 8
   • C) Attempt any one 1 Write a short note on Gravimeters, 2 the age of the earth is determined? 4
3. Q3 A) Attempt any one the general format of flag register and state the function of each flag 2 With reference to 8085 microprocessor , explain the following 8 marks
   • B) Attempt any one Write an assembly language program for 8085 Microprocessor to multiply two 8 bit hexa-decimal numbers and store the product at the 2 Write 8085 instructions to 8
   • i) Load register B with the data A3 h
   • ii) To add data in Accumulator to that in B ili) To load DE register pair with the address of memory location
   • iv) To store the accumulator content in the location pointed by DE To go to the next memory location
   • vi) To complement the data in accumulator
   • vii) To copy the data in accumulator in register C To clear the accumulator
   • C) Attempt any one Write an assembly language program for 8085 microprocessor to subtract 45h from 97h, What is the content in the accumulator at the end of the Write the contents of registers involved at the end of each instruction Memory location 3500h contains the data B6h. Carry register is reset 4
4. Q4 A) Attempt any one 1 What is Natural radioactivity? Describe with suitable examples the signal transmission process through broadband communication with examples. What are the advantages of broadband communication? 8 marks
   • B) Attempt any one Photoelectric effect and Compton effect 2 the essential components of any communication system with the help of block diagram 8
   • C) Attempt any one 1 50 Gy of X-rays can kill 50% tumour cells. It takes 5 Gy of alpha particles to produce the same effect. Calculate the radiation weighing factor for alpha particles 2 The amplitude of a wave 5 cos 804t is modulated by a wave Find the equation of modulated wave. The AM propagation Attempt any Four (20) 1 Draw and labeled diagram of proton magnetometer 2 What are Anthropogenic activities? Draw a neat diagram of Earth’s four 3 Give the op code, operand and number of bytes in each of the following 4
   • i) ,5600h iii) ADI, 67h
   • iv) MOV A,B any two addressing modes with examples 5 Distinguish between Alpha & Beta radiation
   • 6. Explain the process of Pulse Amplitude modulation

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