72.

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80.

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Detector used in infrared spectrophotometer when a response time of 0.5 ms is
required

A) Photoconductive cell B) Golay cell

C) Thermocouple D) Bolometer

In ECG waveform wave represents repolarisation of both ventricles.
A) QRS complex B) P wave

C) T wave D) U wave

In EEG m/m number of electrode locations in the 10/20 system is

A) 24 B) 15 05 0) 21
is not a part of emg machine.

A) Amplifier B) CRO

C) Montage selector D) Loud speaker

Natural pacemaker of heart is

A) Sinoatrial node B) Atrioventricular node
C) Bundle of HIS D) Purkinje fibre

The magnitude of the voltage picked up in an electromagnetic blood flow meter is
not directly proportional to the

A) strength of the magnetic field

B) the diameter of the blood vessel

C) the velocity of blood flow

D) polarity of magnetic field

The electrical shock that reaches to the heart directly and is highly concentrated is
called

A) Micro shock B) Macro shock

C) Extracorporeal shock D) Cardiogenic shock
Process of changing from resting potential to action potential is known as
A) Repolarisation B) Depolarisation

C) Polarisation D) Sodium pump

In CT scanners the impact of an X-ray photon with an electron is accompanied by a
transfer of energy and a fall in the X-ray frequency. This is known as

A) Compton effect B) Planks effect
C) Newton effect D) Einsteen effect

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