Science

Explanation

Cobalt, graphite, and lithium are commonly used in battery cathodes for electric vehicles. These elements play crucial roles in enhancing the performance and efficiency of the batteries by providing stability, conductivity, and energy storage capacity. Nickel is primarily used in battery anodes rather than cathodes in electric vehicle batteries.

Explanation

In a recent study, Delhi researchers developed a sensor using carbon nanotubes to detect cancer cells, confirming statement #3. Since option a is ruled out and statement #4 is consistent across the remaining options, we can consider it as correct. Britannica suggests that carbon nanotubes have potential for targeted drug delivery and nerve cell regeneration, supporting the possibility of using them as carriers of drugs and antigens in the human body (#1). Research also indicates that artificial blood capillaries could be created using carbon nanotubes, aligning with statement #2. Therefore, the correct answer is option "c".

Explanation

Drones are currently capable of effectively performing all three activities mentioned. They can be used for spraying pesticides on crop fields, monitoring active volcanoes, and collecting breath samples from spouting whales for DNA analysis. This information has been confirmed by various reputable sources such as The Hindu, Science USA News, and Reuters.

Explanation

In the given pairs, Belle II experiment is related to particle physics, not Artificial Intelligence. Blockchain technology is correctly matched with Digital/Cryptocurrency. CRISPR-Cas9 is associated with genome editing, not particle physics. Therefore, the correct match is option (b) 2 only.

Explanation

The CRISPR-Cas9 technology is a revolutionary genome editing tool that has the potential to greatly impact the field of biology by enabling precise editing of genomes. Therefore, the association of CRISPR-Cas9 with Particle Physics, as suggested in option 3, is incorrect. This rules out options A, C, and D. The correct answer is option B, as the pairing of Blockchain technology with Digital/Cryptocurrency is accurate.

Explanation

Organic Light Emitting Diodes (OLEDs) offer several advantages over Liquid Crystal displays. They can be manufactured on flexible plastic substrates, allowing for the creation of roll-up displays that can be integrated into clothing. Additionally, OLED technology enables the development of transparent displays. Therefore, the correct answer is option (c) - 1, 2, and 3.

Explanation

The National Innovation Foundation-India (NIF) is an independent organization operating under the Department of Science and Technology within the Central Government. Established in February 2000 in Ahmedabad, its primary objective is to offer support to innovations originating at the grassroots level.

Explanation

Graphene has been making headlines recently due to its unique properties. It is a two-dimensional material with excellent electrical conductivity and is known to be among the thinnest and strongest materials ever examined. Additionally, graphene is made entirely of silicon and boasts high optical transparency. One of its key applications is serving as conducting electrodes essential for touch screens, LCDs, and organic LEDs. The correct statements about graphene from the given options are 1, 2, and 4.

Explanation

In the realm of lighting, there are two common types of bulbs - CFL and LED. CFL bulbs rely on mercury vapor and phosphor to emit light, while LED bulbs utilize semiconductor material for the same purpose. Furthermore, CFL bulbs tend to have a longer lifespan compared to LED bulbs. However, LED bulbs outshine CFL bulbs when it comes to energy efficiency. The correct answer to the question lies in statements (1) and (3) - making option (c) the right choice. When it comes to LED bulbs, they are often arranged in clusters with diffuser lenses. This design feature has expanded the range of applications for LED lighting within households.

Explanation

In May 2009, over 3.8 billion individuals globally utilized the GSM family of wireless technologies. GSM is the most popular wireless technology worldwide. It offers a simple and cost-efficient transition to 3G through GPRS, EDGE, and UMTS-HSPA, as well as advancements beyond 3G with HSPA Evolution (HSPA+) and LTE and System Architecture Evolution (SAE) initiatives.

Explanation

The Shanti Swarup Bhatnagar Prize is awarded for remarkable achievements in the field of science and technology.

Explanation

WiMAX is a popular broadband wireless technology that is widely used today. It is designed to provide cost-effective broadband access to both residential and business customers.

Explanation

In 2006, the Central Leather Research Institute (CLRI) was honored with the CSIR Award for Science and Technology (S&T) Innovations for Rural Development, marking the institute's first win of this prestigious award.

Explanation

Nick started working as a Bioengineering lecturer at Southampton University in January 2011.

Explanation

In this question, you were asked to match Indian scientists/scholars with their respective areas of work. The correct match is: C. N. R. Rao with Solid State Chemistry and Material Science, Jagdish Bhagwati with Economics, G. N. Ramachandran with Physics, and Ashok Jhunjhunwala with Telecommunications. The correct answer option is (a) A-4; B-3; C-2; D-1.

Explanation

The term CMYK is related to offset printing, where it stands for Cyan, Magenta, Yellow, and Black - the primary colors of pigment used in this printing process.

Explanation

The CSIR Diamond Jubilee Technology Award-2004 was presented by the Prime Minister of India in September 2005 to Midas Communication Technologies Private Limited.

Explanation

In this question, you were asked to match a list of institutes with their respective locations. The Central Institute of Medicinal and Aromatic Plants is located in Lucknow, the Centre for DNA Fingerprinting and Diagnostics is in Hyderabad, the Institute of Microbial Technology is situated in Chandigarh, and the National Institute of Immunology is based in New Delhi. The correct matching of these institutes with their locations is option (b): A-4; B-2; C-1; D-3.

Explanation

The 88th Indian Science Congress took place from January 3rd to 7th, 2001. The main theme of this Congress was centered around 'Food nutrition and environmental security'.

Explanation

Tungsten is the material that is both extremely hard and ductile among the options provided. This unique combination of properties makes it ideal for use in filaments and applications that involve high temperatures.

Explanation

In modern motor cars, features like streamlined body and multipoint fuel injection contribute to increased fuel efficiency. This means that options (b) 2 and 3 are the choices that make newer models of motor cars more fuel efficient.