AIIMS (All India Institute of Medical Sciences) Physics: Questions 426  430 of 500
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Question number: 426
» Oscillations and Waves » Standing Waves in Strings and Organ Pipes
Question
A string in a musical instrument is 60 cm long and its fundamental frequency is 800 Hz. If a frequency of 1200 Hz is to be produced, then required length of string is –
Choices
Choice (4)  Response  

a.  40 cm 

b.  50 cm 

c.  65 cm 

d.  70 cm 

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Question number: 427
» Magnetic Effects of Current and Magnetism » Electric Charge Moving in Magnetic Field
Question
Which of the following cannot be deflected by magnetic field?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 428
» Dual Nature of Matter and Radiation » Photoelectric Effect
Appeared in Year: 1999
Question
Light of wavelength in Photoelectric effect gives electron of maximum Kinetic Energy . If wavelength change to then maximum kinetic energy of emitted electrons will be – [AIPMT]
Choices
Choice (4)  Response  

a.  Greater than 0.5 eV 

b.  Less than 0.5 eV 

c.  Photoelectric effect does not occurs 

d.  0.5 eV 

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Question number: 429
» Kinematics » Scalars and Vectors » Scalar and Vector Products
Question
If , then find the angle between P and Q.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 430
» Atoms and Nuclei » Half Life and Mean Life
Appeared in Year: 1998
Question
Half – life period of two radioactive substance are are 40 minute and 20 minute respectively, then after 80 minute ratio of the remaining nuclei will be – (Initially both have equal active nuclei) [AIPMT]
Choices
Choice (4)  Response  

a.  16: 1 

b.  4: 1 

c.  1: 2 

d.  8: 1 

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