NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 1059  1063 of 2184
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Question number: 1059
» Ray Optics » Lens Maker's Formula and Lens Formula
Question
A convex lens of focal length 20 cm is placed in contact with a diverging lens of unknown focal length. The lens combination acts as a converging lens and has a focal length of 30 cm. What is the focal length of the diverging lens
Choices
Choice (4)  Response  

a.   90 cm 

b.   60 cm 

c.   30 cm 

d.   10 cm 

Question number: 1060
Question
A concave minor of focal length f _{0} (in magnitude) produces a reals image n time the size of the object. What is the distance of the object from the mirror?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 1061
» Electromagnetic Waves » Electromagnetic Spectrum » Visible
Question
The range of wavelength of the visible light is
Choices
Choice (4)  Response  

a.  10 Å to 100 Å 

b.  10,000 Å to 15000 Å 

c.  8,000 Å to 10,000 Å 

d.  4,000 Å to 8,000 Å 

Question number: 1062
» Electromagnetic Induction & Alternating Currents » Power in AC Circuits
Question
An ac supply gives 30 V, rms which passes through a 10 Ω resistance. The power dissipated in it is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 1063
» Electromagnetic Induction & Alternating Currents » LCR Series Circuit
Question
An alternating current source of frequency 100 Hz is joined to a combination of a resistance, a capacitance and a inductance in series. The potential difference across the inductance, the resistance and the capacitor is 46,8 and 40 volt respectively. The electromotive force of alternating current source in volt is
Choices
Choice (4)  Response  

a.  94 

b.  14 

c.  10 

d.  76 
