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Which among the following Indian rivers flows from east to west, eventually meeting Arabian sea?
  1. Narmada
  2. Godavari
  3. Krishna
  4. Kaveri
Answer
Two major rivers, Naramda and Tapi, flow from East to West and end in the Arabian Sea.
Correct option is A.

The Radcliffe Line is named after its architect, Sir Cyril Radcliffe. It is a boundary demarcation line between
  1. Pakistan & Afghanistan
  2. India & Bhutan
  3. India & Pakistan
  4. India & Myanmar
Answer
Lord Mountbatten appointed Radcliff commission for participation of Bengal and Punjab.
Correct option is C.

Lord Buddha's image is sometimes shown with the hand gesture called 'Bhumisparsha Mudra'. It symbolizes
  1. Buddha's reminder to his followers that they all arise from the Earth and finally dissolve into the Earth, and thus this life is transitory
  2. Buddha's calling of the Earth to watch over Mara and to prevent Mara from disturbing his meditation
  3. Buddha's calling of the Earth to witness his purity and chastity despite the temptations of Mara
  4. All of these
Answer
The earth witness Buddha is one of the most common iconic images of Buddhism. It depicts the Buddha sitting in meditation with his left hand, palm upright, in his lap, and his right hand touching the earth. This represents the moment of the Buddha's enlightenment.
The correct option is C.

A diode detector is used to detect an amplitude modulated wave of 60% modulation by using a condenser of capacity 250 pico farad in parallel with a load resistance 100 kilo ohm. Find the maximum modulated frequency which could be detected by it.
  1. 10.62 KHz
  2. 5.31 MHz
  3. 5.31 KHz
  4. 10.62 MHz
Answer
Ï„ = RC = 100 × 103 × 250 × 10-12 sec
= 2.5 × 10-5 sec
The higher frequency which can be detected with tolerable distortion is
f = 1/(2Ï€maRC)
where ma = 0.6 and RC = 2.5 × 10-5 sec
f = 10.61 KHz
This condition is obtained by applying the condition that rate of decay of capacitor voltage must be equal or less then the rate of decay modulated singnal voltage for proper detection of modulated signal.
The correct option is A.

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