Questions

Galton's whistle is also called as Dogs whistle or silent whistle, is a type of whistle that emits sound in the ultrasonic range, which people cannot hear but some other animals can, including dogs and domestic cats, and is used in their training.

The author of the book 'Panchashati Galpo' is Atin Bandyopadhyay or Atin Banerjee. He was a writer of Bengali literature.

The Bombay Secretariat was completed in 1874 and designed by Captain Henry St. Clair Wilkins in the Venetian Gothic style. With its arcaded verandahs and huge gable over the west facade, it was a monument to the civic pride of Bombay's British rulers.

Phencyclidine (PCP) is a drug used for its mind-altering effects. It is also known as Angel dust. As a recreational drug, it is typically smoked, but may be taken by mouth, snorted, or injected. It may also be mixed with cannabis or tobacco.

Causes and Effects ::

* PCP may cause hallucinations, distorted perceptions of sounds, and violent behavior.

* Its effects include seizures, coma, addiction, and an increased risk of suicide.

Ramesh Agrawal

p type of semiconductor is obtained when Silicon is doped with a trivalent impurity like Aluminium. Aluminium is a p-type dopant, which means that when a semiconductor i.e. silicon is doped with aluminium, it creates a hole (positively charged carrier) by accepting an electron from the silicon atom. Electrical conductivity of semiconductors increasesand resistivity remains the same

The llama, its wild cousin , the Vicuna and hump-less Alpaca are also found in the high pasture lands of the Andes region of Bolivia and peru, where they are useful as beasts of burden and for the production of fleece and meat.