Indian Navy MR Mock Test - 10 - Airforce X Y / Indian Navy SSR MCQ

Photoelectric effect can be explained by assuming light consisting of quanta that when a photon of certain energy falls on the surface of metal, then the metal surface starts to emit an electron known as photo electrons.

Initial velocity of the truck, u = 0

Acceleration, a = 2 m/s2

Time, t = 10 s

As per the first equation of motion, final velocity is given as:

v = u + at

⇒ 0 + 2 X 10 = 20 m/s

The final velocity of the truck and hence, of the stone is 20 m/s.

At t = 11 s, the horizontal component (v_x) of velocity, in the absence of air resistance, remains unchanged, i.e.,

v_x = 20 m/s

The vertical component (v_y) of velocity of the stone is given by the first equation of motion as:

v_y = u + a_yδt

Where, δt = 11 – 10 = 1 s and a_y = g = 10 m/s2

∴v_y = 0 + 10 X 1 = 10 m/s

Explanation:The SI unit of power, equivalent to one joule per second, corresponding to the rate of consumption of energy (Work done).

Time period of revolution of earth around sun T_e= 1 Year

Time period of revolution of planet around sun,T_p=0.5 Year

Orbital size of earth, r_e= 1 A.U

Orbital size of the planet,r_p=?

Applying Kepler's third law we get: 

The value would increase by 4% per year. To go to 5 times it’s original value, it would require an increment of 400%. At 4% SI it would take 100 years.

LCM (15, 12, 21) = 420 second = 7 minutes

Answer – a) 5/8 Explanation : let total employees are 100 males = 40 and females = 60 (45 women earns more than 20000) total 60 employee earns more than 20000 per month, so number of males earns more than 20000 is 15 so fraction = 25/40 = 5/8

The consecutive even numbers are a, b, c, d, e.
Clearly, b = a + 2, c = a + 4, d = a + 6, e = a + 8

Note: Whenever difference between any two consecutive terms is constant (means the series is an arithmetic series), the average of all the numbers is

(i) the middle number if the number of terms is odd.

(ii) the average of the middle two numbers if the number of terms is even.

Cost ∝ Weight²
Let original weight = 10x
Then, original cost = 100x²k (where k is proportionality constant)
After breakage weight = 1x + 2x + 3x + 4x
After breakage cost = kx²(1 + 4 + 9 + 16) = 30x²k
Now, (100 - 30)x²k = 70,000
Or, 70x²k = 70,000
Or, x²k = 1,000
Hence, original cost = 100x²k
= 100 × 1,000 = Rs. 1,00,000

Assume CP of each pen as Re. 1.
So, his CP is Rs. 10 (∵ he purchased 10 pens and got 2 pens free).
The SP of each pen is Rs. 1.20 and he has 12 pens now.
So, he will get 12 x (1.20) = Rs. 14.4.
So, percentage profit 

Let X be the vertex of the cone and let CX = P, r₃ = 8 cm, r₁ = 18 cm.
Let A, B and C be the centres of largest, middle and smallest spheres.
Let their radii be r₁ (largest), r₂ (middle) and r₃ (smallest), such that
XC = P ... (1)
XB = P + r₃ + r₂..(2)
AX = P + r₃ + 2r₂ + r₁ ... (3)
Applying rule of similarity triangle, we have

From equation (2) we get,

From equation (3) we get,
5K = 13 + r₂........ (5)
Solving equation (4) and equation (5), we get r₂ = 12 cm

The present concept of the structure of an atom is given by Niels Bohr, not Goldstein. Niels Bohr proposed the Bohr model of the atom in 1913, which described electrons orbiting around a central nucleus in discrete energy levels or shells. This model accounted for the stability of atoms and explained phenomena such as the emission and absorption of light. On the other hand, Goldstein's contributions to atomic theory were related to the discovery of the proton and the canal rays, but his work did not provide the current understanding of the structure of an atom. Therefore, the correct answer is C: Niels Bohr.

(331 + 19)*(15 – 11)*(37 + 13) = 350 * 4 * 50 = 70000

So Option B is correct

Lord Chelmsford was the Viceroy of India when the Rowlatt Act was passed.

The Indian Legion officially the Free India Legion or 950th (Indian) Infantry Regiment, was a military unit raised during the Second World War initially as part of the German Army and later the Waffen-SS from August 1944. Intended to serve as a liberation force for British-ruled India, it was made up of Indian prisoners of war and expatriates in Europe. Because of its origins in the Indian independence movement, it was known also as the "Tiger Legion", and the "Azad Hind Fauj".

Indian independence leader Subhas Chandra Bose initiated the legion's formation, as part of his efforts to win India's independence by waging war against Britain, when he came to Berlin in 1941 seeking German aid.

The initial recruits in 1941 were volunteers from the Indian students resident in Germany at the time, and a handful of the Indian prisoners of war who had been captured during the North Africa Campaign.

It would later draw a larger number of Indian prisoners of war as volunteers

Chandragupta II was the third ruler of the Gupta Empire of India who took the epithet of Vikramaditya 4th century CE Sanskrit poet Kalidasa, credits Chandragupta Vikramaditya with having conquered about twenty one kingdoms, both in and outside India.The title Vikramaditya' was later used by 16thcentury Hindu king Samrat Hem Chandra Vikramaditya as well.

Thar Express is an international train that con-nects Karachi, Pakistan to Bhagat Ki Kothi, India. Six kilometres apart, Munabao and Khokhrapar are the two last railway stations of the India-Pakistan border. Jamrao, Mirpur Khas, Shadi Pali, Saeendad. Barmer, Pithoro, Dhoro Naro, and Chhore are some of the stations. Bhagat in Kothi is a train station 5km from Jodhpur Railway Station.

For most part of India, topographic maps are available which are prepared by the Survey of India. To identify a map of a particular area, a map numbering system has been adopted by Survey of India.

The constitutional 73rd 804th Amendment Acts 1992 received the assent of the president of India on 20th April 1993 and came into force on 24th April and on 1st June 1993 respectively. 

The state government of Gujarat has doubled the insurance cover under the Pradhan Mantri Jan Arogya Yojana (PMJAY) starting from 11th July. Now, the beneficiaries of PMJAY in Gujarat will receive an insurance cover of Rs 10 lakhs instead of the earlier 5 lakhs. This decision will benefit approximately 1.78 crore Ayushman Bharat cardholders in the state. The beneficiaries will have access to free medical treatment at over 2,000 government hospitals and 795 private hospitals in Gujarat under the PMJAY scheme.

Jens Stoltenberg has been appointed as the head of NATO. He has been serving as the Secretary-General of NATO since 2014. Stoltenberg's tenure has been extended multiple times due to his leadership skills and his ability to build consensus among the alliance's member countries. He has been widely appreciated for his steady leadership during challenging times, including the presidency of former U.S. President Donald Trump, who raised discussions about the U.S.'s commitment to NATO.

The MoC between India and Japan for the development of the Integrated Mast aims to achieve multiple objectives. It focuses on reducing the radar cross-section (RCS) by combining different antennas into a single structure. This improves the platform's stealth capabilities. Additionally, the MoC aims to enhance defense capabilities and strengthen regional stability through joint efforts in defense technology.

The MoU signed between the DGCA and EASA aims to establish cooperation in various areas related to drone operations. It includes the joint development of standards for drones, collaboration on licensing of personnel, training, air traffic management and infrastructure, and Unmanned Aircraft System Traffic Management (UTM) services. Additionally, both authorities will work together to conduct conferences, workshops, and training programs to enhance knowledge and expertise in the field of drones. The MoU facilitates information sharing, technological advancements, and outreach strategies to relevant stakeholders, contributing to the harmonized growth of the drone sector in India.

Didi Cafe is the initiative aimed at providing low-cost food and snacks in Uttar Pradesh. It is operated by women's self-help groups and is part of the efforts to empower women associated with self-help groups through the National Urban Livelihood Mission (NULM). The correct option is A.

India's first international cruise ship, MV Empress, sails from Chennai to Sri Lanka. The cruise ship visits three ports in Sri Lanka during its journey. The correct option is C.

Nirmala Lakshman has been appointed as the new Chairperson of The Hindu Group Publishing. She holds a Ph.D. in post-modern literature and has over four decades of experience as an editor, writer, and strategist for various publications of The Hindu. The correct option is B.

Smriti Mandhana, an Indian cricketer who represents the Indian women's national team, has been appointed as the brand ambassador for Wrangler in India. She is known for her exceptional talent and fearless approach in international women's cricket. The correct option is C.

During her visit to Suriname, President Droupadi Murmu emphasized the historical and cultural ties between India and Suriname. She highlighted the importance of the multifaceted and modern partnership between the two countries. The correct option is A.

The Didi Cafe initiative in Uttar Pradesh aims to empower women through the provision of low-cost food and snacks. It is operated by women's self-help groups associated with the National Urban Livelihood Mission. The correct option is A.