1. Which plane mirror is used to make periscope?

2. An optical instrument used to see through an object that is occluded from the direct line of sight is called a periscope.

3. A periscope consists of two plane mirrors placed at an angle of 45°.

4. When light falls on one of the mirrors then after reflection from the first mirror it falls on the second mirror which further reflects it and falls on the eye of the observer.

रजनी कोठारी कहा कि "समाज की कोई भी संरचना पूर्णतः समाप्त नहीं होती है, बल्कि उसका स्वरूप बदल जाता है।"

P Udayakumar has taken charge as the Chairman and Managing Director of National Small Industries Corporation Limited.

The Central Government on June 24, 2022, appointed senior IPS officer Tapan Kumar Deka as the Director of the Intelligence Bureau (IB).

1. Indian Space Research Organization (ISRO) is the space agency of India. This organization involves science, engineering and technology to reap the benefits of outer space for India and mankind.

2. ISRO is a major component of the Department of Space, Government of India. The department executes the Indian space program primarily through various centres or units under ISRO.

3. ISRO was earlier known as the Indian National Committee for Space Research (INCOSPAR), which was founded by Dr. Vikram A. It was established by the Government of India in 1962 on the vision of Sarabhai. ISRO was formed on August 15, 1969, and replaced INCOSPAR with an expanded role to harness space technology.

4. Antrix Corporation is the marketing arm of ISRO.

5. ISRO's Master Control Facility is located in Hassan.

1. Indian Space Research Organization (ISRO) is the space agency of India. This organization involves science, engineering and technology to reap the benefits of outer space for India and mankind.

2. ISRO is a major component of the Department of Space, Government of India. The department executes the Indian space program primarily through various centres or units under ISRO.

3. ISRO was earlier known as the Indian National Committee for Space Research (INCOSPAR), which was founded by Dr. Vikram A. It was established by the Government of India in 1962 on the vision of Sarabhai. ISRO was formed on August 15, 1969, and replaced INCOSPAR with an expanded role to harness space technology.

4. Antrix Corporation is the marketing arm of ISRO.

5. ISRO's Master Control Facility is located in Hassan.

1. It is at its greatest in children.

2. With puberty, it eventually shrinks and is replaced by fat.

3. It produces and secretes thymosin, an essential hormone for T cell development and production.

4. Thymus gland is a small organ located under the breast bone in the upper chest.

5. It produces white blood cells, called lymphocytes, which protect the body from infection.

1. Adani Hybrid Energy Jaisalmer One Limited, a subsidiary of Adani Hybrid Energy, established India's first wind-solar hybrid power plant in the Jaisalmer district of Rajasthan.

2. This plant established in Jaisalmer is the country's first wind and solar hybrid power generation plant.