UHS MDCAT 2018

MDCAT 2018 (PART 17)

1. A torch is rated 2.2 V. & 0.25 A. Calculate the charge passing through the bulb in one second and energy transferred by the passage of each coulomb of charge.

 
 
 
 

2. Energy consumed by 60 watt bulb in 2 minutes equal to

 
 
 
 

3. If one molecule of an ideal gas is heated at constant pressure, then the first law of thermodynamics can be written as:

 
 
 
 

4. The de-Brogglie wave length of an electron travelling with a speed of 1.0 × 10^7 m/s is equal to, ( h= 6.6 × 10^-34 Js and Me = 9.1 × 10^-31 kg )

 
 
 
 

5. Find the mean translational kinetic energy of ideal hydrogen gas at 17 C.

 
 
 
 

6. Calculate the activity ( decaying atom per unit time ) of radioactive strontium-90 having 6.7 × 10^21 atom at t=0 decay constant of strontium-90 is ( 8.3 × 10^-10 s^-1).

 
 
 
 

7. If the time period of the oscillation is 20 micro-sec than what what will be the frequency of that oscillating body

 
 
 
 

8. If photo-emission from a metal , if light of λ is replaced by light of wavelength λ/4, the maximum kinetic energy of the photo-electrons

 
 
 
 

9. A cyclist is traveling at 15 m/s. She applies brake so that she does not collide with the wall in front of her at a distance of 18m. Calculate the magnitude of declaration

 
 
 
 

10. In a practical transformer mutual induction between primary and secondary coils take place. In such transformer what can be deduced about the power

 
 
 
 

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Comments 4

  • Please recheck your answer key as many are wrong and can be misleading.

    • Thank you for correcting the answer on MDCAT1.com! Your dedication to accuracy and quality is much appreciated. Yes there were key mistakes on page 1 and 2 but now these are correct and matched with UHS OFFICAL KEY. If you find any mistake please let us know. Your dedication to accuracy is reassuring and invaluable for MDCAT preparation.”

  • in paper of 2018 (part 5)
    the correct answer of question no 10 is analogous organ but in your answer key homologous organ in correct but this answer is wrong analogous organ are the organ that have same structure but have different function

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